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Papers published by project members
in the last 3 years

(for your information)

National Research Institute for Metals (NRIM)

Papers related to the research in Materials Design Team
(April 1, 1997 to now)

  1. H.Murakami, P.J.Warren, T.Kumeta, Y.Koizumi, H.Harada: Microstructural Evolution of β/β’Two Phase Quaternary Alloys, Journal of Surface Analysis,p.56(1997).
  2. H.Murakami, P.J.Warren, T.Kumeta, Y.Koizumi, H.Harada, "Microstructural Characterization of NiTi-Based β2 / Ni2TiAl-based β' Two Phase Alloys", Proceedings of the 2nd International Symposium on Structural Materials, Seven Springs, U.S.A, pp.877-884 (1997)
  3. H.Murakami, P.J.Warren, T.Kumeta(Ibaraki University), Y.Koizumi, H.Harada, "Microstructural Evolution of β2 NiTi-Based /β' Ni2TiAl-based Two Phase Alloys", The Asian Science Seminar, pp323-332 (1997).
  4. H.Murakami, Y.Koizumi, T.Yokokawa, Y.Yamabe-Mitarai and H.Harada: Atom-probe Microanalysis of Ir-bearing Ni-base Superalloys, Materials Science and Engineering A250, pp.109-114 (1998)
  5. H.Murakami, M.Osawa, T.Yokokawa, Y.Koizumi, T.Yamagata, H.Harada: The Location of Atoms in Ir-containing Ni-base Single Crystal Superralloys, 6th Liege Conference on "Materials for Advanced Power Engineering 1998", pp.1139-1145 (1998)
  6. H.Murakami, T.Yokokawa, M.Osawa, Y.Koizumi, H.Harada: Atomistic Investigation of Ir-containing Ni-base Single Cryatal Superalloys, Oxford-Kobe Materials Seminar 1998, pp.13-16 (1998)
  7. H.Murakami, H.Harada, Y.Saito(Waseda University): Design and Analysis of Ni-base Superalloys on an Atomistic Basis, J. Japan Inst. Metals, Vol.63, No.6, pp.723-732 (1999) [in Japanese]
  8. H. Murakami, T. Honma, T. Yokokawa, Y. Koizumi and H. Harada, " The distribution of Ir in Ni-base single crystal superalloys", to be presented in 2000 TMS annual meeting "International Symposium on Iridium" (Nashville, USA, March 2000).
  9. H. Murakami, Y. Koizumi and H. Harada, " The distribution of platinum group metals in Ni-base single-crystal superalloys", to be presented in Superalloys 2000 organized by TMS, (Champion, USA, September 2000).
  10. C. S. Oh, H. Murakami and H. Harada, "Thermodynamic analysis of Ni-Al-Ir and Ni-Al-Ru ternary phase diagrams", to be submitted to the Materials Transactions JIM. (2000)
  11. T. Sakai, H. Murakami and H. Harada, "Phase Equilibrium Calculation of Ni-Al Binary Alloy by Molecular Dynamics simulation", to be submitted to scripta materiallia.
  12. H.Fujii(Osaka University), D.J.C.MacKay(University of Cambridge), H.K.D.H.Bhadeshia(University of Cambridge), H.Harada, K.Nogi(Osaka University): Estimation of Creep Rupture Strength in Nickel-base Superalloys, 6th Liege Conference on "Materials for Advanced Power Engineering 1998", pp.1401-1410 (1998)
  13. H.Harada：High Temperature Materials Design (Review paper), JSPS 123rd Committee Research Report, vol.38, No.3 (Special Issue for the 40th Anniversary Seminar) pp.185-196 (1997) [in Japanese]
  14. H.Harada, H.Murakami：Materials Design; its application to High Temperature Materials (Review paper), JIM Seminar Textbook, pp.61-71 (1998) [in Japanese]
  15. H.Harada and H.Murakami, Design of Ni-base Superalloys (Review paper), a chapter of a book, "Computational Materials Design", Springer-Verlag, Ed. by T.Saito (NRIM), in press.

Papers related to the research in Microstructure Analysis Team
(April 1, 1997 to now)

  1. T.Yokokawa, M.Osawa, H.Murakami, T.Kobayashi, Y.Koizumi, T.Yamagata, H.Harada: High Temperature Measurement of Gamma/Gamma-prime Lattice Misfit in a Third Generation Ni-base Superalloy, 6th Liege Conference on "Materials for Advanced Power Engineering 1998", pp.1121-1128 (1998)
  2. T.Yokokawa, K.Ohno, H.Murakami, T.Kobayashi, T.Yamagata, H.Harada: Accurate Measurement of Lattice Misfit between Gamma and Gamma-prime Phases in Nickel-base Superalloys at High Temperatures, Advances in X-ray Analysis, Vol.39, pp.449-456 (1997)
  3. T.Yokokawa, H.Harada, K.Ohno: X-ray Diffractometric Measurement of Lattice Misfit between gamma/gamma-prime Phases of Ni-base Superalloys at High Temperatures, J. Japan Welding Society, Vol.67, No.2, pp.34-37(1998) [in Japanese]
  4. M.Osawa, T.Yokokawa, T.Kobayashi, Y.Koizumi, H.Harada: X-ray Diffraction Measurement of Gamma/Gamm-prime Lattice Misfit and Lattice Distortion in Ni-base Superalloys, Oxford-Kobe Materials Seminar 1998, Poster paper, pp.8-12 (1998)
  5. S.Yoshitake(Mitsubishi Material), V.Narayan(University of Cambridge), H.Harada, H.K.D.H.Bhadeshia(University of Cambridge), D.J.C.Mackay (University of Cambridge): Estimation of the Gamma and Gamma-prime Lattice Parameters in Nickel-base Superalloys Using Neural Network Analysis, ISIJ International, Vol.38,No.5, pp.495-502 (1998)
  6. T.Yokokawa, M.Fujita, H.Harada: Remote Experiment for the Design of Ni-base Superalloys Using Broadband Research Network, Tetsu to Hagane, ISIJ, Vol.85, No.3, pp.82-87(1999) [in Japanese]
  7. M.Osawa, T.Yokokawa, T.Kobayashi,Y.Koizumi, H.Harada: X-ray Diffraction Measurements of the Lattice Distortion Caused by the g / g ' Lattice Misfit in Ni-base Superalloys, Scripta Materialia (received 4 Jan. 1999)

Papers related to the research in Ni-base superalloy Team
(April 1, 1997 to now)

  1. T.Hino(Toshiba), Y.Yoshioka(Toshiba), K.Nagata(Toshiba), H.Kashiwaya (Toshiba), T.Kobayashi, Y.Koizumi, H.Harada, T.Yamagata, Design of High Re Containing Single Crystal Superalloys for Industrial Gas Turbines, 6th Liege Conference on "Materials for Advanced Power Engineering 1998", pp.1129-1137 (1998)
  2. T.Hino(Toshiba), Y.Ishikawa(Toshiba), Y.Yoshioka(Toshiba), K.Nagata (Toshiba), T.Kobayashi, Y.Koizumi, H.Harada, T.Yamagata: Design of Single Crystal Superalloys for Industrial Gas Turbines, International Gas Turbine Congress 1999 Kobe, November (1999), 169-174.
  3. T.Kobayashi, Y.Koizumi, S.Nakazawa, H.Harada and T.Yamagata: Design of a High Rhenium Containing Single Crystal Superlloy with Balanced Intermediate and High Temperature Creep Strengths, 4th International Charles Parsons Turbine Conference of Advances in Turbine Materials, Design and Manufacturing, pp.766-773 (1997)
  4. T.Kobayashi, Y.Koizumi, T.Yokokawa, S.Nakazawa, H.Harada, T.Yamagata: Design of a Third Generation Single Crystal Superlloy with Excellent Phase Stability, JSPS 123rd Committee Research Report, vol.39, No.1, pp.9-16 (1998) [in Japanese]
  5. T.Kobayashi, Y.Koizumi, H.Harada, T.Yamagata, A.Tamura(Kawasaki H.I.) S.Nitta(Kawasaki H.I.), Design of a Third Generation DS Superalloy TMD-103, 6th Liege Conference on "Materials for Advanced Power Engineering 1998", pp.1079-87 (1998)
  6. Y.Koizumi, T.Kobayashi, T.Kimura, M.Osawa and H.Harada: Third Generation Single Crystal Superalloys with Excellent Processability and Phase Stability, 6th Liege Conference on "Materials for Advanced Power Engineering 1998", pp.1089-1098 (1998)
  7. Y.Koizumi, T.Kobayashi, H.Harada, T.Yamagata: Creep Life Extension of a Single Crystal Superalloy by Re-heat-treatment, 4th International Charles Parsons Turbine Conference of Advances in Turbine Materials, Design and Manufacturing, pp.679-684 (1997)
  8. M.Maldini(CNR-TEMPE,Italy), T.Yamagata, H.Harada, V.Lupinc(CNR-TEMPE, Italy), M.Yamazaki: Effect of a Thermo-mechanical Treatment on Gamma' Morphology and Creep Behaviour Single Crystal Nickel-base Superalloys, 11th Congress of the International Federation for Heat Treatment and Surface Engineering, pp.131-140, Florence, Italy, October (1998)
  9. T.Hino(Toshiba), Y.Yoshioka(Toshiba), K.Nagata(Toshiba), H.Kashiwaya (Toshiba), T.Kobayashi, Y.Koizumi, H.Harada, T.Yamagata, Design of High Re Containing Single Crystal Superalloys for Industrial Gas Turbines, Met. Mat.Trans.A, submitted.

Papers related to the research in Refractory Superalloy Team
(April 1, 1997 to now)

  1. 1. Yuefeng Gu, Y.Yamabe-Mitarai, Y.Ro, T.Yokokawa, H.Harada: Microstructures and Compressive Properties of Ir-15Nb Refractory Superalloys Containing Nickel, Scripta Materialia, Vol. 39, No.6, pp.723-728 (1998)
  2. Yuefeng Gu, Y Yamabe-Mitarai, Xihong Yu, Y.Ro, H.Harada: Effects of Nickel Addition on Strength and Fracture Behavior of Ir-15Nb Two Phase Refractory Superalloy, Oxford-Kobe Materials Seminar 1998, Poster paper, pp.1-7 (1998)
  3. Yuefeng Gu, Y.Yamabe-Mitarai, Y.Ro, T.Yokokawa, H.Harada: Effects of Nickel Content on Microstructures and Compressive Properties of Ir-15Nb Refractory Superalloy, JSPS 123rd Committee Research Report, Vol. 39, No.2, pp.137-144 (1998)
  4. Yuefeng Gu, Y.Yamabe-Mitarai, Y.Ro, H.Harada: Microstructures and Deformation Behavior of Ir-Nb Two Phase Refractory Superalloys for Various Nb Content, Scripta Materialia, Vol. 40, No.11, pp.1313-1319 (1999)
  5. Yuefeng Gu, Y. Yamabe-Mitarai, Y. Ro, and H. Harada, Microstructures and Mechanical Properties of Ir-Nb-Ni fcc-L12 Two-phase Refractory Superalloys, IUMRS-ICAM'99, in press.
  6. H.Sato(National Aerospace Laboratory), K.Itoh(NAL), M.Shimizu(NAL), Y.Yamabe-Mitarai, H.Harada, T.Maruko(Furuya Metals), Y.Nakamura(Hosei University): Solar Thermal Thruster Made of Iridium, 21st International Symposium on Space Technology and Science, 98-a-2-02, pp.1-6, Omiya, Japan, May (1998)
  7. Y.Yamabe-Mitarai, Y.Koizumi, H.Murakami, Y.Ro, T.Maruko(Furuya Metals), H.Harada: Rh-base Refractory Superalloys for Ultra-high Temperature Use, Scripta Materialia, 36, 4, pp.393-398 (1997)
  8. Y.Yamabe-Mitarai, Y.Ro, T.Yokokawa, T.Maruko(Furuya Metals), H.Harada: Growth of L12 Precipitates in FCC Matrix in Ir Binary Alloys, The Asian Science Seminar, pp.277-281 (1997)
  9. Y.Yamabe-Mitarai, Y.Koizumi, H.Murakami, Y.Ro, T.Maruko(Furuya Metals), H.Harada: Platinum Group Metals Base Refractory Superalloys, Mat. Res. Soc. Sympo, 460, pp.701-706 (1997)
  10. Y.Yamabe-Mitarai, Y.Ro, T.Maruko(Furuya Metals), T.Yokokawa, H.Harada: Platinum Group Metals-base Refractory Superalloys for Ultra-high Temperature Use, Structural Intermetallics 1997, p.805-814 (1997)
  11. Y.Yamaba-Mitarai, Y.Ro, T.Maruko(Furuya Metals), H.Harada: Ir-base Refractory Superalloys for Ultra-high Temperature Use, Met.Mat.Trans. A, 29A, pp.537-549 (1998)
  12. Y.Yamabe-Mitarai, Y.Ro, T.Maruko(Furuya Metals), T.Yokokawa, H.Harada: Precipitate Shape Dependence of Strength in Ir-base Refractory Superalloys, 6th Liege Conference on "Materials for Advanced Power Engineering 1998", pp.1147-1154 (1998)
  13. Y.Yamabe-Mitarai, Y.Ro, T.Maruko(Furuya Metals), H.Harada: Microstructure Dependence of Strength of Ir-base Refractory Superalloys, Intermetallics, 7, p.49-58 (1999)
  14. Y.Yamabe-Mitarai, H.Harada: Design of Refractory Superalloys Based on Ir and Rh, U.S.-Japan Workshop on Very High Temperature Structural Materials, pp.117-121, Hawaii, December 9-11 (1998)
  15. Y.Yamabe-Mitarai, Y.Ro, T.Maruko(Furuya Metals), and H. Harada: Precipitation hardening of Ir-Nb and Ir-Zr alloys, Scripta Mat., 40, 1, 1999, 109-115.
  16. Y. Yamabe-Mitarai, Y. Ro, T. Maruko, and H. Harada, Microstructure dependence of strength of I-base refractory superalloys: Intermetallics, 7, 1999, 49-58.
  17. Y. Yamabe-Mitarai, Y. Ro, T. Maruko, and H. Harada: Precipitation hardening of Ir-Nb and Ir-Zr alloys, Scripta Mat., 40, 1, 1999, 109-115.
  18. Yuefeng Gu, Y. Yamabe-Mitarai, Y. Ro, and H. Harada, Microstructure and Deformation behavior of Ir-Nb two phase refractory superalloys for various Nb content, Scripta Mat., 40, 11, 1999, 1313-1319.
  19. Yuefeng Gu, Y. Yamabe-Mitarai, Y. Ro, T. Yokokawa, and H. Harada, Superior Mechanical properties and Fracture behavior of Ir-15at% Nb Two-phase Refractory Superalloys with Nickel Additions, Met. Trans., 30A, 1998, 2696-2639.
  20. Yuefeng Gu, Y. Yamabe-Mitarai, Y. Ro, Y. Yokokawa, and H. Harada, Influence of Nickel Addition on strength and Fracture behavior of Ir-15Nb Two-phase alloy, Mat. Res. Soc. Symp. Proc, 552, 1999, KK7.10.1-6.
  21. Xihong Yu, Y. Yamabe-Mitarai, Y. Ro, Yuefeng Gu and H. Harada, Development of Quaternary Ir-Ta-Ni-Al Refractory superslloys, Scripta Mat., 41, 6, 1999, 651-657.
  22. Xihong Yu, Y. Yamabe-Mitarai, and H. Harada, Phase Separation in Two kinds of L12-Ni3Al and Ir3Nb of Refractory Superalloys, Scripta Mat., 41, 11, 1999, 1153-1159.
  23. Xihong Yu, Y. Yamabe-Mitarai, Y. Ro, and H. Harada, Design of Quaternary Ir-Nb-Ni-Al Refractory Superalloys, Met TransA, 31A, 2000, 173-178.
  24. Xihong Yu, Y. Yamabe-Mitarai, Y. Ro, and H. Harada, New Developed quaternary refractory superalloys, IUMRS-ICAM'99l submitting
  25. Y. Yamabe-Mitarai, Yuefeng Gu, Y. Ro, S. Nakazawa, T. Maruko, and H. Harada, Effect of precipitate morphology on strength of Ir-Nb alloys with two-pahse coherent structures, Scripta Mat., 41, 3, 1999, 305-311.
  26. Y. Yamabe-Mitarai, M-H. Hong, Y. Ro, and H. Harada, Temperature dependence of the flow stress in Ir3Nb with the L12 structure, Phil. Mag. Lett., 79, 9, 1999, 673-682.
  27. Yuefeng Gu, Y. Yamabe-Mitarai, Xihong Yu, and H. Harada, Microstructures and Compressive Properties of Ni-doped Rh-15Nb Two-phase Refractory Superalloys, Materials Letters,41, 1999, 45-51.
  28. Yuefeng Gu, Y. Yamabe-Mitarai, and H. Harada, Compression Properties of B-doped Ir-15Nb Two-phase Refractory Superalloys, Scripta Materialia, 41, 10, 1999, 1079-1083.
  29. Y. Yamabe-Mitarai, Xihong Yu, Yuefeng Gu, Y. Ro, S. Nakazawa, T. Maruko, and H. Harada, Microstructures and High temperature strengths of Ir-based and Rh-based Refractory Superalloys, International Conference on Advanced Technology in Experimental Mechanics '99 ATEM'99, 1999, 543-548.
  30. Yuefeng Gu, Y. Yamabe-Mitarai, Y. Ro, T. Yokokawa, T. Maruko and H. Harada, Microstructures and Fracture Behaviors of Ir-15Nb-XNi and Rh-15Nb-XNi Two-phase Refractory Superalloys, International Conference on Advanced Technology in Experimental Mechanics '99 ATEM'99, 1999, 549-554.
  31. Y. Yamabe-Mitarai, Xihong Yu, Yuefeng Gu, Y. Ro, S. Nakazawa, T. Maruko, and H. Harada, High Temperature Strengths of Ir-based Refractory Superalloys, Key Engineering Materials,171-174, 2000, 625-632.
  32. Yuefeng Gu, Y. Yamabe-Mitarai, Y. Ro, and H. Harada, Microstructures and Fracture Behaviors of Ir-Nb Two-phase Refractory Superalloys Containing Various Amounts of Nb, Ni, Mo, C and B, Key Engineering Materials,171-174, 2000, 669-676.
  33. Xihong Yu, Y. Yamabe-Mitarai, Y. Ro, and H. Harada, Investigation on Microstructure and Fracture of Quaternary Ir-based alloys, Key Engineering Materials,171-174, 2000, 677-684.

General

  1. H.Harada, Y.Yamabe-Mitarai: Superalloys for Gas Turbines; Present and Future (Review paper), Zairyo Kagaku (Journal of Japan Institute of Materials Science), Vol.34, No.2, pp.63-70 (1997) [in Japanese]
  2. H.Harada, T.Yamagata: Researches on Superalloys for Gas Turbines at National Research Institute for Metals (Review paper), Journal of Gas Turbine Society of Japan, Vol.25, No.98, pp.110-113 (1997) [in Japanese]
  3. H.Harada: Development of Superalloys for High Efficiency Gas Turbines (Review paper), Kogyo Zairyo, Vol.46, No.7, pp.114-117 (1998) [in Japanese]
  4. H.Harada: Design of Ni-base and Ir-base Superalloys, Oxford-Kobe Materials Seminar 1998, pp.131-134 (1998)
  5. H.Harada, T.Yamagata: GT-Related Research at National Research Institute for Metals (Review paper), Bulletin of Gas Turbine Society of Japan, pp.46-47 (1998)
  6. H.Harada, High Temperature Materials for High Efficiency Power Generations: Present and Future, M&E, 2 (2000), 114-119.
  7. H.harada, The Present Status of Ni-base Superalloys and Possibilities with New Materials, Gas Turbine Seminar 28, "00-1, 65-73.
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Last modified: Wed Jun 28 15:42:05 2000