Gamma Titanium Aluminide Alloys 2014: A Collection of Research on Innovation and Commercialization of Gamma Alloy Technology

Copyright © 2014 The Minerals, Metals & Materials Society. All rights reserved.

Gamma Titanium Aluminide Alloys 2014: A Collection of Research on Innovation and Commercialization of Gamma Alloy Technology

Editor(s): Young-Won Kim, Wilfried Smarsly, Junpin Lin, Dennis Dimiduk, Fritz Appel

Published Online: 3 OCT 2014 09:08PM EST

Print ISBN: 9781118995587

Online ISBN: 9781118998489

DOI: 10.1002/9781118998489

About this Book

This book is a collection of papers presented at the 4th International Symposium on Gamma TiAl Alloys (ISGTA 2014) that was held in conjunction with the 2014 Annual Meeting of The Minerals, Metals & Materials Society. Papers discuss and assess advances in application and implementation experience in current alloys, fundamental
aspects in current gamma alloy materials technology, new processes development and assessment, and emerging new alloys, their potentials and limitations, and breakthroughs.

Papers that originated in the panel discussion of the symposium are intended to help the scientific community realize the limitations of current alloys materials and processes and discuss possible solutions. Six topic areas selected for this purpose included:

  1. Wrought-processed alloys: status, dilemmas and pathways to future
  2. Cast alloys for aero engine applications: status, issues, and barriers to advances
  3. Cast alloys for turbocharger wheels: status and barriers to widespread applications
  4. Emerging new alloys: justification, potentials, status, and future
  5. Novel processes: justification, potential vs. realization issues, and future
  6. Future applications and realistic pathways to them

Table of contents

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      Front Matter (pages i–xi)

  2. Part I: Alloy Design and Development

    1. Alloy Design Concepts for Wrought High Temperature TiAl Alloys (pages 1–7)

      Junpin Lin, Xiangjun Xu, Laiqi Zhang, Yongfeng Liang, Yong Xu and Guojian Hao

    2. Physical Metallurgy and Performance of the TNB and γ-Md Alloys (pages 9–20)

      Fritz Appel, Michael Oehring and Jonathan D.H. Paul

    3. A Quarter Century Journey of Boron as a Grain Refiner in TiAl Alloys (pages 21–30)

      Dawei Hu

    4. Composition Optimization of β-γ TiAl Alloys Containing High Niobium (pages 31–35)

      Laiqi Zhang, Junzi Zheng, Yongming Hou, Xiangling Ma, Xiangjun Xu and Junpin Lin

  3. Part II: Processing and Fabrication

    1. Impact of ISM Crucible Tilting Process on Mould Filling and Yield of Near-Net Shape TiAl Turbine Blades (pages 37–44)

      Oliver Kättlitz, Julio Aguilar and Santhanu Jana

    2. The Effect of Mould Pre-Heat Temperature and Casting Dimensions on the Reaction Between TiAl Alloy and the Zirconia Investment Casting Moulds (pages 45–50)

      Chen Yuan, Xu Cheng, Dmytro Shevchenko, Grant Holt and Paul Withey

    3. Experimental Research on the Recycling Potential of Precision Cast γ-TiAl During Electroslag Remelting (pages 51–57)

      M. Bartosinski, C. Lochbichler, J. Reitz, P. Spiess, B. Friedrich, T. Stoyanov and J. Aguilar

    4. Influence of the Slag Composition on the Fluorine Absorption in γ-TiAl During Iesr (pages 59–64)

      P. Spiess and B. Friedrich

    5. Response of Melt treatment on the Solidified Microstructure of Ti-48Al-2Cr-2Nb Alloy (pages 65–69)

      Guang Yang, Hongchao Kou, Jieren Yang, Jun Wang, Jinshan Li and Hengzhi Fu

    6. Recent Development and Optimization of Forging Process of High Nb-TiAl Alloy (pages 71–76)

      X.J. Xu, J.P. Lin, Laiqi Zhang and Y. F. Liang

    7. Fabrication of TiAl Alloys by Alternative Powder Methods (pages 77–82)

      Lagos M.A, Agote I, San Juan J.M and J Hennicke

    8. Manufacturing and Properties of High Nb-TiAl Sheet Materials (pages 83–86)

      Y.F. Liang, Z.Z. Shen, H. Wang, L.Q. Zhang, X.J. Xu, Y. Xu, G.J. Hao and J.P. Lin

    9. Reaction Behavior During Heating of Multilayered Ti/Al Foils (pages 87–91)

      Zhengzhang Shen, Yongfeng Liang, Laiqi Zhang, Guojian Hao, Jianping He and Junpin Lin

    10. High Nb Content TiAl Alloys Specified to Cast Process (pages 93–95)

      Haizhao Li and Ji Zhang

  4. Part III: Joining and Surface Protection

    1. Electron Beam Joining of γ-Titanium Aluminide (pages 97–103)

      Uwe Reisgen, Simon Olschok and Alexander Backhaus

    2. Mechanical Properties and Microstructure of a TNM Alloy Protected by the Fluorine Effect and Coated with a Thermal Barrier (pages 105–109)

      Ariane Straubel, Simone Friedle, Michael Schütze, Nadine Laska, Reinhold Braun and Christoph Leyens

    3. Wear Protection for Turbine Blades Made of Titanium Aluminide (pages 111–115)

      André Werner, Wilfried Smarsly and Jörg Eßlinger

    4. Effect of Er Addition on Microstructure and Oxidation Resistance of High Nb Containing TiAl Alloys (pages 117–120)

      Lihua Chai, Ziqi Gong, Feng Zhou, Ziyong Chen and Zuoren Nie

  5. Part IV: Fundamentals

    1. Fundamental and Application-Oriented Research on Gamma Alloys (pages 121–134)

      Rui Yang

    2. Deformation of PST Crystals of Ti46Al8Nb and Ti46Al8Ta (pages 135–142)

      Yina Guo, Ronghua Liu, Hao Jin, Rui Yang, Aijun Huang and Mike Loretto

    3. Seeded Growth of Ti-47Al-2Cr-2Nb PST Crystals (pages 143–147)

      Hao Jin, Ronghua Liu, Yuyou Cui, Quangang Xian, Dongsheng Xu and Rui Yang

    4. Textures of Rectangular Extrusions of Ti-47Al-2Cr-2Nb-0.15B (pages 149–158)

      Renci Liu, Dong Liu, Jun Tan, Yuyou Cui and Rui Yang

  6. Part V: Microstructure and Properties

    1. Origin and Magnitude of Internal Stresses in TiAl Alloys (pages 159–168)

      Roland Hoppe and Fritz Appel

    2. Effects of Microstructure, Alloying and C and Si Additions on Creep of Gamma TiAl Alloys (pages 169–178)

      Young-Won Kim and Sang-Lan Kim

    3. Microstructure and Properties of Cast Ti-46Al-8Ta Alloy (pages 179–188)

      Juraj Lapin, Zuzana Gabalcova, Oto Bajana, Tatiana Pelachova, Hana Stanekova and Katarina Frkanova

    4. Effect of the Microstructure on the Deformation and Fatigue Damage in a Gamma-TiAl Produced by Additive Manufacturing (pages 189–193)

      M. Filippini, S. Beretta, L. Patriarca and S. Sabbadini

    5. Effect of Powder Pre-Treatment on the Mechanical Properties of Powder Metallurgy Ti-47Al-2Cr-2Nb-0.15B (pages 195–202)

      Lei Xu, Jie Wu, Yuyou Cui and Rui Yang

    6. Microstructure and Mechanical Properties of TiAl Alloys Produced by Powder Metallurgy (pages 203–205)

      Fantao Kong, Ning Cui, Yuyong Chen, Deliang Zhang and Yongjun Su

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      Author Index (pages 207–208)

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      Subject Index (pages 209–210)

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