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Microstructure and fatigue properties of TiAl-based alloy with different tungsten contentsZhen-Jun Yang,Hong-Liang Sun,Ze-Wen Huang,De-Gui Zhu,Liang-Hui WangSchool of Materials Science... of TiAlbased alloys with different W contents were investigated.The results indicate that the grain size and lamellar spacing can be significantly refined,and the optimal W content on both the microstructure......
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TiAl基合金的韧化途径及基础应用研究 艾桃桃1 (1.陕西理工学院材料科学与工程学院,陕西,汉中,723003) 摘要:TiAl基合金以其低的密度, 优异的高温强度, 良好的抗氧化性和抗蠕变性等特点获得极大关注, 成为一种很有希望的航空,航天及汽车用高温合金, 但室温脆性严重制约了TiAl基合金的工业化应用. 分析了TiAl基合金室温韧性差的原因, 介绍了改善室温脆性的具体途径, 包括添加合金化元素,制备工艺的不断优化以及复合增强等, 从而改善了TiAl基合金室温脆性, 并概述了TiAl基合金的应用研究. 关键词:TiAl基合金; 室温脆性; 金属间化合物; TiAl-based alloy; brittleness; intermetallic compound; [全文内容正在添加中] ......
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>国家"8 63"高技术基金!资助项目 71 5-0 0 5-0 0 4 0; Manufacture and properties of powder metallurgy TiAl based valves Abstract: The manufacturing method and properties of P/M TiAl based exhaust valves were investigated. The P/M TiAl based exhaust valves were prepared through elemental powder metallurgy (EPM) , i.e. elemental Ti, Al powders were used as raw material......
-based alloy [J]. Trans Nonferrous Met Soc China, 1999, 9(2): 278-280. [9] MOLES M D C, DAVIES G J. Superplasticity in aluminium-silicon eutectic alloys [J]. Scripta Metallurgica, 1976, 10: 455-458... superplasticity could not be obtained even if this sample has ultrafine grains. Key words: Al-Si alloy; microstructure; secondary particle size; superplasticity; grain size; metals and alloys  ......
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Mg-based alloys AM60B as base metal and bulk Mg65Cu22Ni3Y10 amorphous alloy as interlayer between 420 ℃ and 540 ℃. The microstructures and elements distribution of the brazed joints were analyzed...-jie. Brazing of a TiAl-based alloy with Zr65Al7.5Cu27.5 amorphous ribbon[J]. Transactions of the China Welding Institution, 2004, 25(2): 111-114. [19] Lee S J, Wu S K, Lin R Y. Infrared joining of TiAl......
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