"High Temperature Materials 2001"

The 2^nd International Symposium organised by HTM-21 Project, NIMS May 31(Thursday)- June 2 (Saturday), 2001 At National Institute For Materials Science (NIMS*), Sengen 1-2-1, Tsukuba Science City, Japan.

• National Research Institute for Metals (NRIM) and National Institute for Research in Inorganic Materials (NIRIM) have been unified to "NIMS" since April 1, 2001.

Dedication

The High Temperature Materials 2001 Symposium is dedicated to Professor Michio Yamazaki, Teikyo University of Science and Technology, the former Director of Materials Design Division, National Research Institute for Metals, in honor of his pioneering research and development work on design and development of superalloys, Ti-base alloys, and heat resisting steels.

Publication

The presented papers will be published in a special issue of Materials Science and Engineering A after a pure review.

Organising Committee Members

Hiroshi Harada (Chief), NIMS, Japan
Hideyuki Murakami, NIMS, Japan
Makoto Osawa, NIMS, Japan
Naoto Hirosaki, NIMS, Japan
Yoko Yamabe-Mitarai, NIMS, Japan
Toyoaki Yoshida, National Aerospace Laboratory (NAL), Japan
S.Suresh Babu, Oak Ridge National Laboratory (ORNL), USA

Program

31 May (Thursday)

9:30- 9:40

Opening Remarks
T. Saito (NIMS)

Chair H. Harada, Y. Ro

9:40-10:10

1. (Invited) Materials Development for Fabrication and Repair of High Temperature Airfoils
A. M. Ritter, S. Balsone*, B. Bewlay, R. Bunker, S. Ferrigno**, M. Gigliotti, C. Hardwicke, S. C. Huang, M. Jackson, R. Klug, L. Kool, Y. C. Lau, D. Lipkin, C. Mukira, L. Peterson*, J. Ruud, M. Weimer**, J.-C. Zhao (GE CR&D, *GE Power Systems, **GE Aircraft Engines)

10:10-10:35

2. (Review&Project Report) High Temperature Materials 21 Project: Present Status and Plans for Future
H.Harada (NIMS)

Chair N. Hirosaki, S. Sresh Bau

Materials Design

10:55-11:20

3. (Review & Project Report)Current Trends and Future Aspects of the Design of Ni-base Superalloys
H. Murakami, H. Harada(NIMS)

11:20-11:40

4. Evaluation and Prediction of the /' and /' Equilibria in the Ni-Al-PGMs Systems by the Calphad Method
C-S. Oh (KIMM, Korea), H. Murakami, H. Harada (NIMS)

11:40-12:00

5. Molecular Dynamics Simulation for Dislocation Movement in a Ni-Al Solid Solution
T. Sakai(CRIEPI), H. Murakami, H. Harada(NIMS)

Chair Y. Yamabe-Mitarai, M. Maldini

13:15-13:45

6. (Invited) Process Modelling of Thermal-Mechanical Working of Superalloys for Turbine Disc Applications
S. M. Robert, R. C. Reed (Univ. Cambridge/Rolls Royce UTC)

Microstructure Analysis

13:45-14:10

7. (Review & Project Report) Microstructure Analysis of Ni-base Superalloys at High Temperatures
M. Osawa, H. Harada (NIMS)

14:10-14:30

8. High Temperature Lattice Misfit Measurement in Coherent and Semi-coherent Ni-base Superalloys
T. Yokokawa, M. Osawa, T. Murakumo, Y. Koizumi, T. Kobayashi, H. Harada (NIMS)

14:30-14:50

9. TEM Observation of Microstructures in Crept Ni-base Single Crystal Superalloys with and without Re
T. Murakumo, T. Kobayashi, S. Nakazawa, Y. Koizumi, H. Harada (NIMS)

14:50-15:20

10. (Invited) Primary Creep in Single Crystal Superalloys: Origins, Mechanisms and Effects
C. M. Rae, T. Smeeton, M. A. Rist, R. C. Reed (Univ. Cambridge/Rolls Royce UTC)

Chair R. C. Reed, Y. F. Gu

Ni-base Superalloys: Development and Evaluation

15:40-16:10

11. (Invited) Partitioning and the Solidification of Advanced Superalloy Single Crystals
S. Tin, T. Pollock (University of Michigan)

16:10-16:30

12. High Temperature Properties of a New Ni-base Single Crystal Superalloy, TMS-82+
T. Hino, Y. Yoshioka (Toshiba), Y. Koizumi, T. Kobayashi, S. Nakazawa, H. Harada (NIMS)

16:30-16:50

13. Thermal Fatigue Behaviour of a Third Generation Single Crystal Superalloy TMS-75
H. Zhou (NIMS), I. Okada (Mitsubishi Heavy Industries), Y. Ro, H. Harada, Y. Koizumi, T. Kobayashi (NIMS)

16:50-17:10

14. Design of Ni-base DS Superalloys for Industrial Gas Turbines
M.Sato, Y. Koizumi, T. Kobayashi, H. Harada (NIMS), J. Fujioka (KHI)

17:10-17:30

15. Development of 4th Generation Single Crystal Superalloys
Y. Koizumi, T. Kobayashi, T. Yokokawa, H. Harada (NIMS), Y. Aoki, M. Arai, S. Masaki, K. Chikugo (IHI)

1 June (Friday)

Chair H. Murakami, C. M. Rae

Repair and Rejuvenation

9:00-9:30

16. (Invited) Nonequilibrium Microstructure Evolution in Nickel Base Superalloys
S. Suresh Babu, J. M. Vitek, M. K. Miller, S.A. David (ORNL)

9:30-9:50

17. Effect of Creep Strain on Remnant Life after Re-solution Heat Treatment in TMS-75
H. Tamaki*, Y. Koizumi**, T. Kashimura*, T. Kobayashi**, A. Yoshinari*, H. Harada** (*Hitachi, **NIMS)

9:50-10:10

18. Misorientation Development in /' Superalloys and Its Applications on Strain measurement in Turbine Airfoils
C. Fukuoka, H. Yoshizawa, K. Morishima, K. Mino (IHI)

Chair A. M. Ritter, M. Sato

Environmental Properties

10:30-11:00

19. (Invited) Development of Ni-base superalloys: Factors Affecting the Oxidation Performance
K. Pruessner (Siegen University)

11:00-11:30

20. (Invited)Thickness and Property Prediction of Thermal Sprayed Coatings for Turbine Component
K. Wada, Y. Yoshioka (Toshiba)

11:30-11:50

21. Sand Erosion of Ni-base Superalloys at Elevated Temperatures
T. Senda (National Maritime Research Institute), K. Arai, Y. Sasaki, Y. Yasuda (Hosei University)

Chair T. Pollock, K. Mino

Refractory Superalloys/Alloys

13:00-13:25

22. (Review & Project Report)Design of Refractory Superalloys Using Platinum Group Metals
Y. Yamabe-Mitarai, H. Harada (NIMS)

13:25-13:45

23. Characterization of Microstructures and Mechanical Properties in Two-phase Ir-Nb-X Ternary Refractory Superalloys
Y.F. Gu, Y. Yamabe-Mitarai, Y. Ro, S. Nakazawa, H. Harada (NIMS)

13:45-14:05

24. The Evolution of Microstructure and Properties of Ir-Ni Base Quaternary Refractory Superalloys
X. H. Yu (Manitoba U., Canada), Y. Yamabe-Mitarai, Y. Ro, S. Nakazawa, H. Harada (NIMS)

14:05-14:25

25. Mechanical Properties and Phase Equilibria of Pt-Rh-Hf Alloys
GB Fairbank, CJ Humphreys (University of Cambridge), CN Jones (Rolls-Royce)

14:25-14:45

26. Mechanical Properties of Cr-base High Temperature Alloys
Y. Ro, Y. Koizumi, T. Kobayashi, T. Yokokawa, E. Bannai, H. Harada (NIMS)

14:45-15:15

27. (Invited)Development of Nb-based Refractory Alloys
A. Kasama, H. Tanaka, K. Sakamoto, M. Fujikura, R. Tanaka (JUTEMI), S. Hanada (Tohoku University), Y. Mishima (Tokyo Institute of Technology), T. Narita (Hokkaido University)

Chair K. Pruessner, Y. Yoshioka

Ceramics

15:35-16:05

28. (Invited)Development of Ceramic Gas Turbines, 300kW and 8000kW
T. Tatsumi, Y. Ichikawa (Kawasaki Heavy Industries)

16:05-16:30

29. (Review & Project Report)Advanced Silicon Nitride Ceramics for Gas Turbine Applications
N. Hirosaki (NIMS), A. Okada (JFCC)

16:30-16:50

30. Tensile Creep and Oxidation Behaviour of Silicon Nitrides with Different Additive Contents at 1300 ° C
J-W Cao, A. Okada (JFCC), N. Hirosaki (NIMS)

16:50-17:10

31. Grain Boundary Microstructure and Tensile Creep Behaviour of a Yb2O3-Doped Silicon Nitride
J-W Cao, T. Suzuki, A. Okada (JFCC), N. Hirosaki (NIMS)

Chair S. Masaki, M. Osawa

Virtual Turbine

17:10-17:35

32. (Review & Project Report)Virtual Turbine: Its State of the Art and Advanced Works in the Project
T. Yoshida (NAL), H. Harada (NIMS), Y. Fukuyama (Toshiba), A. Ogawa, O. Nozaki, T. Nishizawa, M. Matsushita, F. Zhou (NAL)

17:35-17:55

33. Development of a Virtual Turbine System for New Materials Design
H. Saeki, Y. Fukuyama (Toshiba), H. Harada (NIMS), T. Yoshida (NAL)

17:55-18:00

Closing Remarks
A. Sato (NIMS)

2 June (Saturday)

A bus leaves NIMS at 9:00, visiting 800-years-old bell foundry run by Sho-emon Otabe The 37th, and then Mt. Tsukuba peaks (876m high) providing a 360 degrees view of the Kanto Plains (or visiting Mashiko Potteries if rain) .