Processing and Character Evaluation of Ultrafine Grained Aluminum Alloys Containing Ceramic Particles

含陶瓷颗粒超细晶铝合金的加工及性能评价

• 批准号: 01550061
• 负责人: OTSUKA Masahisa
• 金额: $ 1.22万
• 依托单位: Shibaura Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01550061/
• 关键词: Atomizing; Rapid Solidification; Powder Metallurgy; Aluminum; Aluminum-Iron Alloy; Creep; Dispersion Strengthening; Wear Resistance; 粉末治金; Al-Fe

The purpose of the present study is to investigate the solid-state weldability of aluminum-based RS/PM alloys and to assess the applicability of these alloys as advanced structural materials. As a first step, we try here to perform friction welding (FRW) of RS/PM aluminum alloys containing 4 or 8 mass% iron. Although detailed experimental studies have been performed on the FRW of conventional aluminum alloys, almost no light has been shed upon the FRW on such PM aluminum alloys. The results are summarized as follows.(1) The friction welding can be applied to RS/PM aluminum alloys Alー4Fe and Al-8Fe, although the ductility of the welded joint is insufficient at present.(2) Under almost all conditions employed, the FRW provides a joint with the tensile strength comparable with that of base metal both at room temperature and at elevated temperatures.(3) The lack of ductility is principally ascribed to the formation of an intermetallic layer especially in the outer region of the interface. Partial melting of the matrix may possibly play an important role in the above process.(4) Even at the weld interface, the matrix does not melt as a whole in the welding process.

本研究的目的是研究铝基RS/PM合金的固态焊接性，并评估这些合金作为先进结构材料的适用性。作为第一步，我们在这里尝试对含有4或8质量%铁的RS/PM铝合金进行摩擦焊接（FRW）。虽然对常规铝合金的FRW进行了详细的实验研究，但几乎没有对粉末冶金铝合金的FRW进行研究。结果总结如下。(1)铝合金Al-4Fe和Al-8 Fe的摩擦焊是可行的，但目前其焊接接头的塑性不足。(2)在几乎所有使用条件下，FRW提供的接头在室温和高温下的抗拉强度与母材金属相当。(3)缺乏延展性主要归因于金属间化合物层的形成，尤其是在界面的外部区域。基体的部分熔融可能在上述过程中起重要作用。(4)即使在焊接界面处，基体在焊接过程中也不会整体熔化。

项目成果

M. Otsuka, H. Ishihara, M. Sugamata and J. Kaneko: "Deformation of Mechanically Alloyed Al-TiB2 Alloys at Elevated Temperatures" Mechanical Alloying, ASM International. 221-228 (1990)

M. Otsuka、H. Ishihara、M. Sugamata 和 J. Kaneko：“机械合金化 Al-TiB2 合金在高温下的变形”机械合金化，ASM International。

M. Otsuka and K. Watanabe: "Tensile Deformation Behavior of ODS Ferritic Steel at Elevated Temperature" Proc. 33rd Japan Cong. Mater. Res.33. 13-18 (1990)

M. Otsuka 和 K. Watanabe：“ODS 铁素体钢在高温下的拉伸变形行为”Proc。

M.Otsuka,H.Ishihara,M.Sugamata and J.Kaneko: "Deformation of Mechanically Alloyed AlーTiB_2 Alloys at Elevated Temperatres" Mechanical Alloying,ASM International. 221-228 (1990)

M.Otsuka、H.Ishihara、M.Sugamata 和 J.Kaneko：“机械合金化 Al-TiB_2 合金在高温下的变形”机械合金化，ASM International 221-228 (1990)。

M.Otsuka et al.: "Deformation of Mechanically Alloyed AlーTiB_2 Alloys at Elevated Temperatures" Proc.ASM Int.Conf.on STRUCTURAL APPLICATIONS OF MECHANICAL ALLOYING(March 26-28,Myrtle Beach). (1990)

M.Otsuka 等人：“机械合金化 Al-TiB_2 合金在高温下的变形”Proc.ASM Int.Conf.on 机械合金化的结构应用（3 月 26-28 日，默特尔比奇）（1990 年）。

M.Otsuka,T.Ishihara,M.Suキamata andJ. Kaneko: "Deformation of Mechanically Alloyed AlーTiBCC2DD Alloys at Elevated Temperatures" Mechanical Alloying, ASM International. 221-228 (1990)

M.Otsuka、T.Ishihara、M.Sukiamata 和 J. Kaneko：“机械合金化 Al-TiBCC2DD 合金在高温下的变形”机械合金化，ASM International 221-228 (1990)。