于洋,熊柏青,惠松骁,叶文君,宋晓云,刘睿,付艳艳

• 1:北京有色金属研究总院有色金属材料制备加工国家重点实验室

摘要(Abstract)：

在Gleeble-1500热模拟试验机上进行高温压缩试验,研究了变形温度为1000～1100℃,初始应变速率为0.01～1 s-1的铸态Ti-6Al-4V-0.1B合金的变形行为。基于动态材料模型建立了加工图,并观察了变形组织。结果表明:该合金为热敏感和应力敏感型合金,热变形的最佳变形参数为1050～1100℃,应变速率在0.1～1 s-1之间。铸态大变形区组织为沿着变形方向拉长的原始β晶粒,晶粒组织内部出现针状马氏体,TiB相在变形的过程中出现折断,并沿着加工流线分布。

关键词(KeyWords)： 铸态Ti-6Al-4V-0.1B合金;高温变形行为;加工图

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 于洋,熊柏青,惠松骁,叶文君,宋晓云,刘睿,付艳艳

DOI: 10.13289/j.issn.1009-6264.2012.06.027

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