权思佳,宋克兴,张斌斌,王启,郑开宏,张丹丹

• 1:河南科技大学材料科学与工程学院
• 2:河南省有色金属材料科学与加工技术重点实验室
• 3:中国船舶重工集团公司第七二五研究所
• 4:广东省材料与加工研究所

摘要(Abstract)：

用X射线衍射仪(XRD)、扫描电镜(SEM)、透射电镜(TEM)等研究Ti80合金在3种热处理工艺下的显微组织与硬度。结果表明:当热处理工艺由900℃×1 h/AC改变至980℃×1 h/AC时,合金由等轴组织转变为双态组织,并伴随着初生α相的减少和球化、β相的增多、次生α相与α'马氏体形态的转变,但合金元素固溶规律无变化;经1020℃×1 h/AC热处理后,合金形成片层组织,初生α相消失、次生α相呈长针丛状在粗大的原始β晶粒内平行分布,此时α'板条马氏体与α'孪晶马氏体共存且合金元素分布较均匀;随热处理温度的升高,合金硬度先降低后升高。

关键词(KeyWords)： Ti80合金;热处理;显微组织

Abstract:

Keywords:

基金项目(Foundation): 河南省科技攻关计划(国际科技合作)项目(162102410025);; 河南省自然科学基金培育项目(162300410085)

作者(Author): 权思佳,宋克兴,张斌斌,王启,郑开宏,张丹丹

DOI: 10.13289/j.issn.1009-6264.2018-0023

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