1989 Fiscal Year Annual Research Report

合金における相変態機構の原子的尺度での解析

Research Project

Project/Area Number	01302054
Research Institution	Kyoto University
Principal Investigator	小岩昌宏京都大学, 文学部, 教授 (00005860)
Co-Investigator(Kenkyū-buntansha)	大塚和弘筑波大学, 物質工学系, 教授 (50029881) 清水謙一大阪大学, 産業科学研究所, 教授 (60029832) 平賀賢二東北大学, 金属材料研究所, 教授 (30005912) 入戸野修東京工業大学, 工学部, 教授 (40016564) 井野博満東京大学, 工学部, 教授 (20029466)
Keywords	マルテンサイト変態 / ベイナイト変態 / 形状記憶合金 / 準結晶 / 金属間化合物 / 相変態機構
Research Abstract	1.マルテンサイト変態:Au-47.5at.%Cd 合金はマルテンサイト変態する典型的な合金であり、また、時効果によりゴム状弾性を示すことが知られている。この原因を明らかにするためX線回折実験を行い、ピ-ク・プロファイルが時効とともに非対称性をますことを見出した。(大塚)。また、ひずみを導入した合金についての実験から、ひずみの存在はζS_2マルテンサイトの生成を促進する効果があることが結論された(永沢)。Fe-Pd合成金のbctマルテンサイトには独特な局所歪が認められ、これが正方性の原因となっていることが示唆された(大嶋)。 2.ベイナイト変態:鋼のベイナイト変態において、フェライトの格子変形はマルテンサイト的せん断変形が強く関与していることを明らかにした(岡)。 3.合金における構造のゆらぎと相変態:ti-Ni合金に添加した第3元素の占有位置をALCHEMI法により調べた。FeおよびCoはNiサイトに、Cr,Mn,CuはTiとNiの両サイトにほぼ均等に入っていることが明らかにされた(清水)。アモルファス合金の中範囲規則構造を高分解能電顕法により観察し、各種のモデルと比較検討した(長倉)。 4.金属間化合物の相変態と構造欠陥:Pd-Mn系合金(渡辺)、Ag-Al合金(北野、Au-Cr合金(原田)、Pd-Ce系金属間化合物(沖)、U-Pd,U-Os系金属間化合物(安達)、各種準結晶(平賀)の構造、圧力の効果、磁性との関連を調べた。また、金属間化合物における拡達機構について詳細な解析を行った(小岩)。

Research Products

(22 results)

All Other

All Publications (22 results)

[Publications] S.Miyazaki: "The Shape Memory Mechanism Associated with the Martensitic Transformation in Ti-Ni Alloys-I.Self-accommodation," Acta Metall.37. 1873-1884 (1989)
[Publications] R.Oshima: "Mechanical Rehavior Associated with FCC-FCT Thermoelastic Martensite Transformation of FE-Pt and Fe-Pd Alloys" MRS International.Meeting on Advanced Materials. 9. 475-480 (1989)
[Publications] Y.Nakata: "High Resolution AnalyticalElectron Microscopy Study on the Bainitic Transformation in a Cu-Zn-al Alloy" Materials Transactions,JIM.30. 107-116 (1989)
[Publications] T.Suzuki: "Reverse Transformation Behaviour of the Stabilized Martensite in Cu-Zn-Al Alloy" Acta Metall.37. 163-168 (1989)
[Publications] T.Shigematsu: "Tetragonal to Monocjinic Phase Transition in ZrO_2-Y_2O_3" Jpn.J.Appl.Phys.Series2.
[Publications] 井野博満: "FCCγ-鉄中における窒素原子間の相互作用と原子配列" 日本金属学会誌. 53. 372-377 (1989)
[Publications] K.Takezawa: "Macroscopic Shape Change due to the Bainitic Transformation in Cu-Zn-Al Alloys" Trans.JIM. 29. 894-902 (1988)
[Publications] M.Hayakawa: "Structural Study on the Tetragonal to Monoclinic Transformation in Arc-melted ZrO_3-2mol.%Y_2O_3-I.Experimental Observations" ActaMetall.37. 2223-2228 (1989)
[Publications] K.Hiraga: "High-Reslution Electron Microscopy of quasicrystals" Mat.Res.Soc.Symp.Proc.139. 125-134 (1989)
[Publications] S.Matsumura,: "Study of Temperature Factors in Cubic Crystals by High-Voltage Electron Diffraction" J.Electron Microsc.Tech.12. 262-271 (1989)
[Publications] H.Iwasaki: "Time-Resolved Two-Dimensional Observation of the Change in X-ray X-ray Diffuse Scattering from an Alloy Single Crystal Using an Imging Plate on Synchrotron Radiation Source" J.Appl.Cryst.
[Publications] Y.Kashihara: "Cation and Anion Displacements at Hetero-Interfaces of(GaAs)_<28>(AlAs)_<24> Superlattice Layers" Jap.J.Appl.Phys.27. 522-527 (1988)
[Publications] M.Yamamoto: "Phase Transformations at/near the Surface of Ordering Alloys" Surface Sci.213. 502-524 (1989)
[Publications] M.Takata: "Grain Boundary Structure Analysed by a Coincidence-Site-Lattice Pattern for a Layer Stacking Structure of the 4H-Type Laves Phase" Acta Cryst.B45. 6-13 (1989)
[Publications] O.Terasaki: "The Incorporation of Selenium into the Channels of Mordenite: An Electron Microscopic Study" J.Solid State Chem.77. 72-83 (1988)
[Publications] Y.Iijima: "Diffusion in Gold-rich Gold-Aluminium Alloys," Materials Transactions JIM. 30. 480-486 (1989)
[Publications] N.Yamamoto: "Superspace Group Analysis of the MOdulated Structure in Superconductor Bi-Sr-Ca-Cu-O" Jap.J.Appl.Phys.28. L598-L601 (1989)
[Publications] H.sugiyama: "Annealing Effects on Lattice Distorton in Anodized Porous Silicon Layers" Jpn.J.Appl.Phys.28. L2013-L2016 (1989)
[Publications] M.Kontani: "Magnetic Properties of UAu_3" J.Magn.Magn.Mat.76&77. 655-656 (1988)
[Publications] N.Ohnishi: "Examination of X-ray Diffraction Pattern of BaTiO_3" Solid State Communications. 68. 571-574 (1988)
[Publications] M.Arita: "Diffusion Mechanisms in Ordered Alloys-A Detailed Analysis of Six-jump Vacancy Cvcle in the B_2 Type Lattice" Acta Metall.37. 1363-1374 (1989)
[Publications] 小岩昌宏: "金属間化合物における扱散" 日本金属学会会報. 28. 723-731 (1989)

1989 Fiscal Year Annual Research Report

合金における相変態機構の原子的尺度での解析

Principal Investigator

小岩 昌宏 京都大学, 文学部, 教授 (00005860)

Research Products

[Publications] S.Miyazaki: "The Shape Memory Mechanism Associated with the Martensitic Transformation in Ti-Ni Alloys-I.Self-accommodation," Acta Metall.37. 1873-1884 (1989)

[Publications] R.Oshima: "Mechanical Rehavior Associated with FCC-FCT Thermoelastic Martensite Transformation of FE-Pt and Fe-Pd Alloys" MRS International.Meeting on Advanced Materials. 9. 475-480 (1989)

[Publications] Y.Nakata: "High Resolution AnalyticalElectron Microscopy Study on the Bainitic Transformation in a Cu-Zn-al Alloy" Materials Transactions,JIM.30. 107-116 (1989)

[Publications] T.Suzuki: "Reverse Transformation Behaviour of the Stabilized Martensite in Cu-Zn-Al Alloy" Acta Metall.37. 163-168 (1989)

[Publications] T.Shigematsu: "Tetragonal to Monocjinic Phase Transition in ZrO_2-Y_2O_3" Jpn.J.Appl.Phys.Series2.

[Publications] 井野博満: "FCCγ-鉄中における窒素原子間の相互作用と原子配列" 日本金属学会誌. 53. 372-377 (1989)

[Publications] K.Takezawa: "Macroscopic Shape Change due to the Bainitic Transformation in Cu-Zn-Al Alloys" Trans.JIM. 29. 894-902 (1988)

[Publications] M.Hayakawa: "Structural Study on the Tetragonal to Monoclinic Transformation in Arc-melted ZrO_3-2mol.%Y_2O_3-I.Experimental Observations" ActaMetall.37. 2223-2228 (1989)

[Publications] K.Hiraga: "High-Reslution Electron Microscopy of quasicrystals" Mat.Res.Soc.Symp.Proc.139. 125-134 (1989)

[Publications] S.Matsumura,: "Study of Temperature Factors in Cubic Crystals by High-Voltage Electron Diffraction" J.Electron Microsc.Tech.12. 262-271 (1989)

[Publications] H.Iwasaki: "Time-Resolved Two-Dimensional Observation of the Change in X-ray X-ray Diffuse Scattering from an Alloy Single Crystal Using an Imging Plate on Synchrotron Radiation Source" J.Appl.Cryst.

[Publications] Y.Kashihara: "Cation and Anion Displacements at Hetero-Interfaces of(GaAs)_<28>(AlAs)_<24> Superlattice Layers" Jap.J.Appl.Phys.27. 522-527 (1988)

[Publications] M.Yamamoto: "Phase Transformations at/near the Surface of Ordering Alloys" Surface Sci.213. 502-524 (1989)

[Publications] M.Takata: "Grain Boundary Structure Analysed by a Coincidence-Site-Lattice Pattern for a Layer Stacking Structure of the 4H-Type Laves Phase" Acta Cryst.B45. 6-13 (1989)

[Publications] O.Terasaki: "The Incorporation of Selenium into the Channels of Mordenite: An Electron Microscopic Study" J.Solid State Chem.77. 72-83 (1988)

[Publications] Y.Iijima: "Diffusion in Gold-rich Gold-Aluminium Alloys," Materials Transactions JIM. 30. 480-486 (1989)

[Publications] N.Yamamoto: "Superspace Group Analysis of the MOdulated Structure in Superconductor Bi-Sr-Ca-Cu-O" Jap.J.Appl.Phys.28. L598-L601 (1989)

[Publications] H.sugiyama: "Annealing Effects on Lattice Distorton in Anodized Porous Silicon Layers" Jpn.J.Appl.Phys.28. L2013-L2016 (1989)

[Publications] M.Kontani: "Magnetic Properties of UAu_3" J.Magn.Magn.Mat.76&77. 655-656 (1988)

[Publications] N.Ohnishi: "Examination of X-ray Diffraction Pattern of BaTiO_3" Solid State Communications. 68. 571-574 (1988)

[Publications] M.Arita: "Diffusion Mechanisms in Ordered Alloys-A Detailed Analysis of Six-jump Vacancy Cvcle in the B_2 Type Lattice" Acta Metall.37. 1363-1374 (1989)

[Publications] 小岩昌宏: "金属間化合物における扱散" 日本金属学会会報. 28. 723-731 (1989)

小岩昌宏京都大学, 文学部, 教授 (00005860)