刘洪骁,董洪波,朱知寿

• 1:南昌航空大学航空制造工程学院
• 2:北京航空材料研究院先进钛合金航空科技重点研究院

摘要(Abstract)：

研究了不同冷/温变形条件下TB17钛合金的组织演变规律与相变行为,以及低温时效对其组织的影响。结果表明:变形顺序对TB17钛合金的相变行为有着较大的影响,先温变形再冷变形时合金发生了明显的形变诱导α相析出及马氏体相变,形变诱导α相析出发生在塑性变形阶段,而先冷变形再温变形时合金仅有形变诱导马氏体相变。在无低温时效的条件下,经初次冷变形产生的形变诱导马氏体在二次温变形时起到协调变形的作用,当350℃×0.5 h低温时效加入到两次变形之间,原本由初次冷变形产生的马氏体逐渐分解,且低温时效过程中并未发生其它明显的相变,但它促进了二次温变形时α相的析出。

关键词(KeyWords)： TB17钛合金;冷/温变形;形变诱导马氏体;低温时效

Abstract:

Keywords:

基金项目(Foundation): 航空科学基金项目(2015ZE56011);; 南昌航空大学创新基金项目(YC2018015)

作者(Author): 刘洪骁,董洪波,朱知寿

DOI: 10.13289/j.issn.1009-6264.2019-0038

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