Low temperature deformation for the formation of fine grained non-equilibrium materials

形成细晶非平衡材料的低温变形

• 批准号: 05402051
• 负责人: SHINGU Hideo
• 金额: $ 20.48万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-05402051/
• 关键词: nanocrystal; nano structure; mechanical alloying; layr stracture; interface reaction; fine grained structure; ナカニカルアロイング; 準安定; 非平衡; マモルファス; 粉末治金; アモルファス; 粉末冶金

This paper deals with the experimental results of the formation of nano-meter sized crystals grains in several alloys by the method of mechanical deformation. Repeated press deformation method was employed in plase of the conventional milling method to make the processing principle of fine grained structure as possible. Repeated pressing of Ag-70at%Cu sample for 100 times produced a super saturated solid solution. Electrical resistivity reduction by the application of magnetic field, characterisitic for the nano-scaled composites of magnetic and non-magnetic metals, was observed in Co-Cu samples.

本文论述了通过机械变形的方法在几种合金中形成纳米尺寸晶粒的实验结果。采用重复冲压变形方法代替传统铣削方法，使细晶结构的加工原理成为可能。 Ag-70at%Cu样品重复压制100次产生过饱和固溶体。在 Co-Cu 样品中观察到，通过施加磁场，电阻率降低，这是磁性和非磁性金属纳米级复合材料的特征。

项目成果

P. H. Shingu: "Metastable Phase Formation and Activity Estimation of the Ag-Cu System Prepared by Mechanical Alloying" Materials Science Forum. 179-181. 237-242 (1995)

P. H. Shingu：“机械合金化制备的银铜体系的亚稳态相形成和活性估计”材料科学论坛。

P.H.Shingu: "Metastable Melting Phenomena and Solid State Amorphization (SSA)by Mechanical Alloying" J.of Alloys and Compounds JALCOM7226. vol.194. 319-324 (1993)

P.H.Shingu：“机械合金化的亚稳态熔化现象和固态非晶化 (SSA)”J.of 合金与化合物 JALCOM7226。

P.H.Shingu: "Metastable Phase Formation and Activity Estimation of the Ag-Cu System Prepared by Mechanical Alloying" Materials Science Forum. Vol.20. 179-181,237-242 (1995)

P.H.Shingu：“机械合金化制备的 Ag-Cu 体系的亚稳态相形成和活性估计”材料科学论坛。

P. H. Shingu: "Nano-Structyre Formation by Repeated Compressive Plastic Deformation" Ann. Chim. Fr.18. 387-394 (1993)

P. H. Shingu：“通过重复压缩塑性变形形成纳米结构”Ann。

P. H. Shingu: "Atomic Scale Laminated Alloy Structures Produced by Repeated Pressing" Proceedings of 1993 Powder Metallurgy World Congress. 86-89 (1993)

P. H. Shingu：“通过重复压制生产的原子级层压合金结构”1993 年粉末冶金世界大会论文集。