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Superalloys 2016: proceedings of the 13th International Symposium on Superalloys ; sponsored by the Seven Springs International Symposium Committee in cooperation with the High Temperature Alloys Committee of the Structural Materials Division of TMS (The PDF

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S U P E M L L O YS 2016 S U P E M L L O YS 2016 Proceedings of the 13th International Symposium on Superalloys Sponsored by the Seven Springs International Symposium Committee in cooperation with the High Temperature Alloys Committee of the Structural Materials Division of TMS (The Minerals, Metals & Materials Society) and co-sponsored by ASM International and IOM3 (The Institute of Materials, Minerals and Mining) Held September 11-15, 2016 at the Seven Springs Mountain Resort, Seven Springs, Pennsylvania, USA Edited by Mark Hardy, Eric Huron, Uwe Glatzel, Brian Griffin, Beth Lewis, Cathie Rae, Venkat Seetharaman, and Sammy Tin TMS Wl LEY Copyright © 2016 by The Minerals, Metals & Materials Society. All rights reserved. Published by John Wiley & Sons, Inc., Hoboken, New Jersey. Published simultaneously in Canada. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of The Minerals, Metals & Materials Society, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 750-4470, or on the web at www.copyright.com. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., Ill River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at http:// www.wiley.com/go/permission. Limit of Liability/Disclaimer of Warranty: While the publisher and author have used their best efforts in preparing this book, they make no representations or warranties with respect to the accuracy or completeness of the contents of this book and specifically disclaim any implied warranties of mer- chantability or fitness for a particular purpose. No warranty may be created or extended by sales rep- resentatives or written sales materials. The advice and strategies contained herein may not be suitable for your situation. You should consult with a professional where appropriate. Neither the publisher nor author shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages. Wiley also publishes books in a variety of electronic formats. Some content that appears in print may not be available in electronic formats. For more information about Wiley products, visit the web site at www.wiley.com. For general information on other Wiley products and services or for technical sup- port, please contact the Wiley Customer Care Department within the United States at (800) 762-2974, outside the United States at (317) 572-3993 or fax (317) 572-4002. Library of Congress Cataloging-in-Publication Data is available. ISBN 978-1-118-99666-9 Printed in the United States of America. 10 98765432 1 Wl LEY TIMIS TABLE OF CONTENTS Superalloys 2016 Preface xiii Dedication xv Best Paper Award xv/'/' Committee Members x/'x Symposium Keynote Address Innovation through Collaboration 3 S.J. Patel and J.J. deBarbadillo Session 1: Alloy Development I Alloys-by-Design: Towards Optimization of Compositions of Nickel-Based Superalloys 15 Roger C. Reed, Alessandro Mottura, and David J. Crudden CMSX-4® Plus Single Crystal Alloy Development, Characterization and Application Development 25 Jacqueline B. Wahl and Ken Harris Development of a Low-Density Rhenium-Free Single Crystal Nickel-Based Superalloy by Application of Numerical Multi-Criteria Optimization Using Thermodynamic Calculations 35 RalfRettig, Kami I Matuszewski, Alexander Müller, HaraldE. Helmer, Nils C. Ritter, and Robert F. Singer Investigation of Superalloy Composition Space Using High Throughput Thin Film Synthesis and Synchrotron X-Ray Diffraction 45 L.D. Connor, P.M. Mignanelli, S. Guérin, J.P. Soulié, C. Mormiche, S. Frost, R. Greenhalgh, B.E. Hayden, and H.J. Stone Interactive Session A: Alloy Development II Development of a Low-Cost Third Generation Single Crystal Superalloy DD9 57 J.R. Li, S.Z. Liu,X.G. Wang, Z.X. Shi, andJ.Q. Zhao Grain Boundary Precipitation Strengthening of Phosphorus-Added Nickel-Iron Base Superalloy 65 Yusaku Hasebe, Koichi Takasawa, Takuya Ohkawa, Eiji Maeda, and Takashi Hatano Development of New SX Superalloys - Fast Experimental Feedback Versus Thermodynamic Modeling 75 R. Võlkl, E. Fleischmann, R. Rettig, E. Affeldt, and U. Glatzel Experimental Study of the Binary Ni-Ru-System Using Diffusion Couples Manufactured by Encapsulating Cast 83 Robert Popp, Rainer Võlkl, Thomas Gõhler, and Uwe Glatzel The Role of Local Chemical Composition for TCP Phase Precipitation in Ni-Base and Co-Base Superalloys 89 T. Hammerschmidt, J. Kofimann, C.H. Zenk, S. Neumeier, M. Gõken, I. Lopez-Galilea, L. Mujica Roncery, S. Huth, A. Kostka, W. Theisen, and R. Drautz Precipitation Kinetic Modeling of the New Eta-Phase Ni AlNb in Ni-Base Superalloys 97 6 Markus Rath, Erwin Povoden-Karadeniz, and Ernst Kozeschnik Development of Ni-Cr-Fe-W-Al Superalloy for Advanced Ultra-Supercritical Fossil Power Plants 107 X. C. Hao, M. Q. Ou, T. Liang, C. Xiong, Y. C. Ma, and K. Liu Development of Low or Zero-Rhenium High-Performance Ni-Base Single Crystal Superalloys for Jet Engine and Power Generation Applications 115 Kyoko Kawagishi, Tadaharu Yokokawa, Toshiharu Kobayashi, Yutaka Koizumi, Masao Sakamoto, Michinari Yuyama, Hiroshi Harada, Lkuo Okada, Masaki Taneike, and Hidetaka Oguma ν Design of Next Generation Ni-Base Single Crystal Superalloys Containing Ir: Towards 1150 °C Temperature Capability 123 T. Yokokawa, H. Harada, Y. Mori, K. Kawagishi, Y. Koizumi, T. Kobayashi, M. Yuyama, and S. Suzuki Sulfur and Minor Element Effects on the Oxidation of Bilayer γ'+ β Bond Coats for Thermal Barrier Coatings on René N5 131 David J. Jorgensen, Akane Suzuki, Don M. Lipkin, and Tresa M. Pollock High Temperature Creep of γ'-Containing CoNi-Based Superalloys 141 Michael S. Titus, Luke H. Rettberg, and Tresa M. Pollock Effects of Si Addition on the High Temperature Strength and Oxidation Behavior of γ'-Bearing Co-Based Superalloys 149 An-Chou Yeh, L-Ting Ho, Sheng-Chi Wang, and Chia-Fu Cheng The Effect of Alloying Elements on the High Temperature Oxidation of Solid-Solution Strengthened Ni-Base Superalloys 159 Dae Won Yun, Y.S. Yoo, H.W. Jeong, and SM. Seo Effect of Bond Coat and Substrate Chemistry on the Interfacial Degradation of Thermal Barrier Coatings 167 L. T. Wu, R. T. Wu, T. Osada, KL. Lee, Μ. Bai, and P. Xiao Effect of Re and Ta on Hot Corrosion Resistance of Nickel-Base Single Crystal Superalloys 177 J.X. Chang, D. Wang, G. Zhang, L.H. Lou, and J. Zhang Session 2: Alloy Development III Advanced Supersolvus Nickel Powder Disk Alloy DOE: Chemistry, Properties, Phase Formations and Thermal Stability 189 Andrew Powell, Ken Bain, Andrew Wessman, Daniel Wei, Timothy Hanlon, and David Mourer Y Phase Instabilities in High Refractory Content γ Y Ni-Base Superalloys 199 Stoichko Antonov, Dieter Lsheim, David N. Seidman, Eugene Sun, Randolph C. Helmink, and Sammy Tin Development of Nickel-Cobalt Base P/M Superalloys for Disk Applications 209 Y.F. Gu, T. Osada, Τ. Yokokawa, Η. Harada, and J. Fujioka Superalloys for Advanced Energy Applications: Inconel Alloy 740H - A Case Study on International Government-Industry-University Collaboration 217 John deBarbadillo, Brian Baker, andXishan Xie Session 3: Blade Alloy Manufacture Application and Validation of a Directional Solidification Model and Dendrite Morphology Criterion for Complex, Single-Crystal Castings 229 J.D. Miller, K.J. Chaput, D.S. Lee, andM.D. Uchic Innovations in Casting Techniques for Single Crystal Turbine Blades of Superalloys 237 Dexin Ma, Fu Wang, Qiang Wu, Samuel Bogner, and Andreas Bührig-polaczek The Distribution and Retention of Yttrium and Lanthanum in Cast Single Crystal Superalloys 247 S.P. Leyland, LMEdmonds, S. Lrwin, C.N. Jones, A. Bhowmik, D. Ford, and C.M.F. Rae Interactive Session B: Alloy & Component Manufacture I Multiscale Modeling of Heat Treatment Processing for Single-Crystal Ni-Base Superalloys 259 Chen Shen, Akane Suzuki, and Douglas G. Konitzer vi Microstructure Instability of Ni-Base Single Crystal Superalloys during Solution Heat Treatment 267 N. D 'Souza, D. Welton, J. Kelleher, G.D. West, Z.H Dong, G. Brewster, and H.B. Dong Development of Thermal Barrier Coating System Using EQ Coating for Advanced Single Crystal Superalloys 279 Kazuhide Matsumoto, Kyoko Kawagishi, and Hiroshi Harada Effect of Rejuvenation Heat Treatment and Aging on the Microstructural Evolution in Rene N5 Single Crystal Ni Base Superalloy Blades 285 Joydeep Pala, Dheepa Srinivasana, and Eric Cheng The Formation Mechanism, Influencing Factors and Processing Control of Stray Grains in Nickel-Based Single Crystal Superalloys 293 Yafeng Li, Lin Liu, Taiwen Huang, Dejian Sun, Jun Zhang, and Hengzhi Fu Resonant Ultrasound Spectroscopy for Defect Detection in Single Crystal Superalloy Castings 303 B.R. Goodlet, L.H. Rettberg, and T.M. Pollock Investigation of Oxide Bifilms in Investment Cast Superalloy IN100 313 M.A. Kaplan, R.K Guarriello, and G.E. Fuchs A New Analysis of the Microstructure of Ni-Based Single-Crystal Superalloys: Relevant Topological Parameters for Efficient Microstructural Modeling 323 M. Degeiter, M. Perrut, B. Appolaire, Y. Le Bouar, and A. Fine I Single-Crystal Superalloy Joining 333 Akane Suzuki, Jeffrey Schoonover, Chen Shen, and David Wark Selective Electron Beam Melting of the Single Crystalline Nickel-Base Superalloy CMSX-4®: From Columnar Grains to a Single Crystal 341 Markus Ramsperger and Carolin Kòrner Defect Formation and Its Mitigation in Selective Laser Melting of High γ' Ni-Base Superalloys 351 Xiqian Wang, Noriko Read, Luke N. Carter, R. Mark Ward,Moataz andM. Attallah Developing Processing Parameters for Nickel-Base Superalloys for the Electron Beam Melting Additive Manufacturing Process 359 Francisco Medina, Michael Kirka, UlfAckelid, and Ryan Dehoff Parameter Optimization for Electron Beam Melting of IN718 Based on Melt Pool Characterization 367 Xiao Ding, Yuichiro Koizumi, andAkihiko Chiba Effect of Heat Treatments on the Microstructure and Texture of CM247LC Processed by Selective Laser Melting 375 R. Muñoz-Moreno, V.D. Divya, OM.D.M. Messé, Τ. Lllston, S. Baker, and H.J. Stone Session 4: Blade Alloy Behavior Thermal Cycling Creep Resistance of Ni-Based Single Crystal Superalloys 385 Jonathan Cormier Influence of Crystal Orientation on Cyclic Sliding Friction and Fretting Fatigue Behavior of Single Crystal Ni-Base Superalloys 395 Balavenkatesh Rengara], Sotaro Baba, andMasakazu Okazaki Sustained Peak Low-Cycle Fatigue in Single Crystals with Equilibrium γ-γ' Coatings 405 M.A. Lafata, L.H. Rettberg, C. Mercer, and T.M. Pollock vii Session 5: Disk Alloy Manufacture Heteroepitaxial Recrystallization Observed in René 65™ and Udimet 720™: A New Recrystallization Mechanism Possibly Occurring in All Low Lattice Mismatch γ-γ' Superalloys 417 Marie-Agathe Charpagne, Thomas Billot, Jean-Michel Franchet, and Nathalie Bozzolo Systematic Evaluation of Microstructural and Thermo-Mechanical Effects on the As-Forged Condition of Alloy ATI 718Plus® 427 Ana Casanova, Katja Loehnert, Daniela Huenert, Mark Hardy, and Catherine Rae Effect of Ingot Size on Microstructure and Properties of the New Advanced AD730™ Superalloy 437 C. Croze t, A. Devaux, R. Forestier, S. Charmond, M. Hue Her, D. Helm, and W. Buchmann Inhomogeneous Grain Coarsening Behavior in Supersolvus Heat Treated Nickel-Based Superalloy RR1000 447 IM.D. Parr, T.J. Jackson, M.C. Hardy, D.J. Child, C. Argyrakis, K. Severs, V. Saraf, andJ.M. Stumpf Interactive Session C: Alloy & Component Manufacture II The Influence of the Starting Grain Size during High-Temperature Grain Boundary Engineering of Ni-Base Superalloy RR1000 459 Martin Detrois, John Rotella, Robert L. Goetz, Randolph C. Helmink, and Sammy Tin Evaluation of AD730™ for High Temperature Fastener Applications 469 A. Devaux, W. Li, C. Crozet, and J.M. Lardón Conventionally Forged RR1000 Billet for Forged Turbine Components 479 Kevin J. Bockenstedt, Christopher M. O 'Brien, Ramesh S. Minisandram, George J. Smith, and David J. Bryant Deformation Mechanisms and Microstructural Evolution of γ + γ' Duplex Aggregates Generated during Thermo mechanical Processing of Nickel-Base Superalloys 487 Beijiang Zhang, Guangpu Zhao, Wenyun Zhang, Guohua Xu, and Heyong Qin Full Field Modeling of the Zener Pinning Phenomenon in a Level Set Framework - Discussion of Classical Limiting Mean Grain Size Equation 497 B. Scholtes, D. Llin, A. Settefrati, N. Bozzolo, A. Agnoli, andM. Bernacki Friction Stir Processing of Cast Alloy 718 505 Bharat K. Jasthi, Edward Chen, Brahmanandam Kaligotla, Todd Curtis, Michael West, and Christian Widener Integrated Process Modeling for the Mechanical Properties Optimization of Direct Aged Alloy 718 Engine Disks 513 Bernd Oberwinkler, Andreas Fischersworring-Bunk, Marco Hüller, and Martin Stockinger Influence of Carbide Distribution on Ductility of Haynes®282® Forgings 523 C. Joseph, M. Hòrnqvist, R. Brommesson, and C. Persson An Approach to Microstructure Modelling in Nickel Based Superalloys 531 Aleksey Reshetov, Olga Bylya, Nicola Stefani, Malgorzata Rosochowska, and Paul Blackwell Mechanical Properties of Cast & Wrought Hybrid Disks 539 Hesser Taboada Michel, Layla Sasaki Reda, Georgia Effgen Santos, Jonathan Cormier, Christian Dumont, Patrick Villechaise, Philippe Bocher, Damien Texier, Eric Georges, Florent Bridier, Florence Hamon, and Alexandre Devaux viii Session 6: Disk Alloy Behavior I Separating the Influence of Environment from Stress Relaxation Effects on Dwell Fatigue Crack Growth in a Nickel-Base Disk Alloy 551 J. Telesman, T.P. Gabb, and L.J. Ghosn Microstructural Aspects of Fatigue Crack Initiation and Short Crack Growth in René 88DT 561 Zafir Alam, David Eastman, George Weber, Somnath Ghosh, and Kevin Hemker Statistical Assessment of Fatigue-Initiating Microstructural Features in a Polycrystalline Disk Alloy 569 William C. Lenthe, Jean-Charles Stinville, McLean P. Echlin, and Tresa M. Pollock Determination of Orientation and Alloying Effects on Creep Response and Deformation Mechanisms in Single Crystals of Ni-Base Disk Superalloys 579 T.M. Smith, L. V. Duchao, T. Hanlon, A. Wessman, Y. Wang, and M.J. Mills Session 7: Alloy & Component Manufacture III High Temperature Properties of a Single Crystal Superalloy PWA1484 Directly Recycled after Turbine Blade Use 591 Satoshi Utada, Yuichiro Joh, Makoto Osawa, Tadaharu Yokokawa, Toshiharu Kobayashi, Kyoko Kawagishi, Shinsuke Suzuki, and Hiroshi Harada Manufacture of Large Ni-Base Ingots and Forgings 601 Nikolaus Blaes, Bernhard Donth, Andreas Diwo, and Dieter Bokelmann Influence of Hot Working Conditions on Grain Growth Behavior of Alloy 718 609 Chuya Aoki, Tomonori Lleno, and Takehiro Ohno Microstructure-Sensitive Model for Predicting Surface Residual Stress Relaxation and Redistribution in a P/M Nickel-Base Superalloy 619 M.E. Burba, D.J. Buchanan, M.J. Catón, R. John, andRA. Brockman Interactive Session D: Alloy & Component Behavior I Fatigue Crack Growth Rate Assessment of Superalloys by the EBSD Method 631 D. Kobayashi, T. Takeuchi, andM. Achiwa Stage I Fatigue Crack Propagation in a Single Crystal and a Directional Solidified Ni-Base Superalloy 639 Motoki Sakaguchi, Ryota Komamura, Yuta Hosaka, and Hirotsugu Lnoue Anisothermal High-Temperature Cyclic Behavior of a Ni-Based Single Crystal Superalloy 647 Jean-Briac le Graverend, Jonathan Cormier, Franck Gallerneau, Serge Kruch, and José Mendez Discussing the Effect of Gamma Prime Coarsening on High Temperature Low Stress Creep Deformation with Respect to the Role of Refractory Elements 655 T. Goehler, C. Schwalbe, J. Svoboda, E. Affeldt, andR.F. Singer On the Development of ICME Tools for Creep and Aging of CMSX®-8 665 E.A. Estrada Rodas, S. Gorgannejad, R. W. Neu, Z. Dyer, P.M. Draa, and S.R. Shinde Creep Deformation of a 6th Generation Ni-Base Single Crystal Superalloy at 800 °C and 735 MPa 675 Y. Yuan, K. Kawagishi, Y. Koizumi, T. Kobayashi, T. Yokokawa, and H. Harada Effect of Hf and Β on Transverse and Longitudinal Creep of a Re-Containing Nickel-Base Bicrystal Superalloy 683 Y.S. Zhao, J. Zhang, Y.S. Luo, G. Sha, D. Ζ. Tang, and Q. Feng ix Mechanical Properties and Microstructure Design in Repairing Mar-M 509 Alloy Turbine Components 693 Zengmei Wang Koenigsmann, Ravi Shankar, and Richard Fenton Evaluation of Temperature and Stress in First Stage High Pressure Turbine Blades of a Directionally-Solidified Superalloy DZ125 after Service in Aeroengines 701 Y.D. Chen, Y.R. Zheng, C.B. Xiao, and Q. Feng On the Temperature Dependence of Creep Behavior of Ni-Base Single Crystal Superalloys 711 P. Wollgramm, X. Wu, and G. Eggeler Microstructure Changes and Oxidation Resistance of Aluminized Ni-Based Single Crystal Superalloys 719 Hideyuki Murakami and Kazuki Kasai Factors Affecting TBC Furnace Cycle Lifetime: Temperature, Environment, Structure and Composition 727 B.A. Pint, J A. Haynes, M.J. Lance, H.L. Aldridge, Jr., V. Viswanathan, G. Dwivedi, and S. Sampath Oxidation Coating Life Extension in Gas Turbine Blades during Repair 735 Dheepa Srinivasan, N. Dayananda, Neha Kondekar, Mounika Gandi, and Hariharan Sundaram Session 8: Blade Alloy Behavior II High Temperature Creep Damage Mechanisms in a Directionally Solidified Alloy: Impact of Crystallography and Environment 747 L. Mataveli Suave, J. Cormier, P. Villechaise, D. Bertheau, G. Benoit, F. Mauget, G. Cailletaud, and L. Marcin Characterization of Tilt and Twist Low Angle Grain Boundaries and Their Effects on Intermediate-Temperature Creep Deformation Behaviour 757 Yao Wang, Dong Wang, Gong Zhang, Langhong Lou, and Jian Zhang Crack Initiation and Propagation during Thermal-Mechanical Fatigue of IN792: Effects of Dwell Time 763 Paraskevas Kontis, DavidM. Collins, Sten Johansson, Angus J. Wilkinson, Johan J. Moverare, and Roger C. Reed Creep and Oxidation Behaviour of Coated and Uncoated Thin Walled Single Crystal Samples of the Alloy PWA1484 773 Fabian Krieg, Mike Mosbacher, Markus Fried, Ernst Affeldt, and Uwe Glatzel Session 9: Disk Alloy Behavior II ATI718Plus® - New Nickel Based Disc Alloy and Its Capability 783 D. Huenert, M. Proebstle, A. Casanova, R. Schluetter, R. Krakow, M. Buescher, P. Randelzhofer, A. Evans, K. Loehnert, T. Witulski, S. Neumeier, and C. Rae Thermal Stability of Cast and Wrought Alloy Rene 65 793 Andrew Wessman, Aude Laurence, Jonathan Cormier, Patrick Villechaise, Thomas Billot, and Jean-Michel Franchet Novel Techniques to Assess Environmentally-Assisted Cracking in a Nickel-Based Superalloy 801 André A.N. Németh, David J. Crudden, David M. Collins, David E.J. Armstrong, and Roger C. Reed Interactive Session E: Alloy & Component Behavior II Benchmarking Crystal Plasticity Models with Micro tensile Evaluation and 3D Characterization of René 88DT 813 David W. Eastman, Zafir Alam, George Weber, Paul A. Shade, Michael D. Uchic, William C. Lenthe, Tresa M. Pollock, and Kevin J. Hemker χ Characterization and Modeling of Deformation Mechanisms in Ni-Base Superalloy 718 821 D. McAllister, D. Lv, H. Deutchman, B. Peterson, Y. Wang, and M.J. Mills Dislocations Nucleation and Interaction with Grain Boundaries in a Polycrystalline Nickel Base Superalloy 831 O.M.D.M. Messé and C.M.F. Rae Effect of Large Plastic Strains and Strain Gradients on Residual Stress Relaxation in Shot Peened IN100 841 Dennis J. Buchanan and Reji John Relationship between the Microstructure, Low Cycle Fatigue and Creep Properties of a Cast and Wrought Ni-Co Base Superalloy TMW-4M3 Disk 849 Shinichi Kobayashi, Tomonori Lleno, Takehiro Ohno, and Hiroshi Harada Probability of Occurrence of Life-Limiting Fatigue Mechanism in P/M Nickel-Based Superalloys 859 S.K Jha, W.J. Porter, M.J. Catón, R. John, D.J. Buchanan, A.H. Rosenberger, andJ.M. Larsen Influence of Residual Stresses on the Fatigue Life of a Shot-Peened Nickel-Based Single Crystal Superalloy: From Measurements to Modeling 867 Amélie Morançais, Mathieu Fèvre, Manuel François, Nicolas Guel, Serge Kruch, Pascale Kanouté, and Arnaud Longuet Relationships between Microstructural Parameters and Time-Dependent Mechanical Properties of a New Nickel Based Superalloy AD730™ 877 Louis Thébaud, Patrick Villechaise, Jonathan Cormier, Florence Hamon, Coraline Crozet, Alexandre Devaux, Jean-Michel Franchet, Anne-Laure Rouffié, andAntoine Organista A Unified LCF Model for Conventionally Heat Treated Inconel 718 887 Michael D. Marotta and David C. Dudzinski Effect of Non-Metallic Ceramic Inclusions on Strain Localization during Low Cycle Fatigue of a Polycrystalline Superalloy 897 Jean-Charles Stinville, Victoria M. Miller, and Tresa M. Pollock Effects of Oxidation on Fatigue Crack Initiation and Propagation in an Advanced Disk Alloy 907 R. Jiang, N. Gao, Μ. Ward, Ζ. Aslam, J.C. Walker, and P.A.S. Reed Physics-Based Modeling Tools for Predicting Type II Hot Corrosion in Nickel-Based Superalloys 917 KS. Chan, M.P. Enright, J.P. Moody, and S.H.K. Fitch Characterization of Grain Boundaries and Associated Minor Phases in Disk Alloy ME3 Exposed at 815 °C 927 Chantal K. Sudbrack, Laura J. Evans, Anita Garg, Daniel E. Perea, and Daniel K. Schreiber Session 10: Environmental Behavior Slip Localization and Hydrogen Embrittlement of Alloy 718 939 Zhenbo Zhang, Gideon Obasi, Roberto Morana, and Michael Preuss Effects of Sea Salt on the Oxidation of CMSX-4® at 1100 °C 949 Η. T. Pang, F. Li, S. Pahlavanyali, L.M. Edmonds, G. Brewster, and C.M.F. Rae Damage Evolution during Compressive Hold Sustained Peak Low Cycle Fatigue of a Ni-Based Single-Crystal Superalloy 959 Swapnil Patil, Shenyan Huang, Mallikarjun Karadge, Doug Konitzer, and Akane Suzuki xi

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