Fundamental Study on Preparation of Ultra-Fine-Grained Metal-Matrix Composite Materials by Plastic Working of Amorphous Crystalline and Its Crystallization Treatment

非晶塑性加工制备超细晶金属基复合材料及其晶化处理的基础研究

• 批准号: 05650094
• 负责人: MOROOKA Toshimasa
• 金额: $ 1.28万
• 依托单位: Musashi 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: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05650094/
• 关键词: Mechanical Alloying; amorphous Alloy; crystallization Process; Ti-Cu Alloy; Extrusion; Fine-Grained Structure; Intermetallic Compound; Diffusion Bonding; 非晶質金属; 結晶粒界

An amorphous Ti-43mol%Cu alloy was obtained by mechanical alloying of mixture of elemental copper and titanium powders. When the amorphous powder was heat-treated under a constant heating-rate of 0.5K/s, the crystallization from amorphous phase starts at about 640K and it becomes to most active at 670K.So, powder-extrusion of the amorphous alloy was carried out at warm-working temperature range of less than the crystallization temperature. However, equilibrium TiCu phase formes in the amorphous matrix during the extrusion at 633K.The mechanical alloying of mixture of the amorphous Ti-Cu alloy and pure aluminum powders was carried out and the structural change with this process was investigated. The grain size of aluminum matrix becomes to extremely fine and the intermetallic compounds of Al-Ti and Al-Cu systems are formed at interface between aluminum and amorphous phases by the mechanical alloying for prolonged time. High-strengthen composite material consisting of the structure with dispersion of amorphous particles in the aluminum matrix can be to product by the extrusion of the mechanically alloyed powder.

采用机械合金化方法，将单质Cu和Ti粉末混合，得到Ti-43mol%Cu非晶合金。当非晶粉末在0.5K/s的恒定升温速率下进行热处理时，非晶相在640 K左右开始晶化，在670 K时晶化最活跃，因此非晶合金的粉末挤压在低于晶化温度的温加工温度范围内进行。在633 K挤压过程中，非晶基体中形成了平衡TiCu相。将非晶Ti-Cu合金与纯Al粉末混合进行机械合金化，研究了机械合金化过程中合金组织的变化。长时间机械合金化使铝基体的晶粒尺寸变得非常细小，在铝与非晶相的界面处形成Al-Ti和Al-Cu系金属间化合物。采用机械合金化方法制备的铝基复合材料，可以获得非晶颗粒弥散分布的高强度复合材料。

项目成果

T.Morooka, E.Yuasa and Y.Morikawa: "Mechanical Alloying Process of Mixture of Al-Cu-Ti Powders" J.Japan Soc.Powder and P/M.41-3. 273 (1994)

T.Morooka、E.Yuasa 和 Y.Morikawa：“Al-Cu-Ti 粉末混合物的机械合金化工艺”J.Japan Soc.Powder 和 P/M.41-3。

師岡利政: "MAにより非晶質化したTi-43at%Cu混合粉の結晶化について" 粉体および粉末治金. 40. 251-255 (1993)

Toshimasa Morooka：“通过 MA 制成非晶态的 Ti-43at%Cu 混合粉末的结晶”粉末和粉末冶金。 40. 251-255 (1993)

師岡利政: "Al-Cu-Ti混合粉末の機械的合金化" 粉体および粉末冶金. 41. 273-276 (1994)

Toshimasa Morooka：“Al-Cu-Ti 混合粉末的机械合金化”粉末与粉末冶金。 41. 273-276 (1994)

T.Morooka, E.Yuasa, M.Kushida and Y.Morikawa: "Mechanical Alloying Process of Mixture of Amorphous Ti-43at%Cu and Aluminum Powders" J.Japan Soc.Powder and P/M.40-10. 963 (1993)

T.Morooka,%20E.Yuasa,%20M.Kushida%20and%20Y.Morikawa:%20"机械%20合金%20工艺%20of%20混合物%20of%20非晶质%20Ti-43at%Cu%20and%20铝%20粉末"%

師岡利政: "純アルミニウムと非晶質Ti-Cu合金混合粉末をメカニカルアロイングした合金粉末の熱処理に伴う組織変化" 粉体および粉末冶金. 42. 205-209 (1995)

Toshimasa Morooka：“纯铝和非晶 Ti-Cu 合金的机械合金化混合粉末的热处理引起的结构变化”粉末和粉末冶金。 42. 205-209 (1995)