李峰丽,张明玉,于成泉,岳旭,同晓乐,张亚峰

• 1:新疆湘润新材料科技有限公司
• 2:大连交通大学连续挤压教育部工程研究中心
• 3:长春工业大学应用技术学院

摘要(Abstract)：

首先分别对在单相区(880℃)和两相区(840℃)加热保温2 h后的TC16钛合金丝材进行3种不同方式的冷却处理(水冷、空冷、炉冷),随后采用光学显微镜、扫描电镜、X射线衍射、拉伸性能测试以及冲击性能测试等研究了该合金经不同方式冷却处理后的组织和力学性能。结果表明：当加热温度位于两相区时(840℃),合金的组织由等轴α相构成，当加热温度位于单相区时(880℃),组织中等轴α相完全消失，并出现β晶粒。3种冷却方式中，经空冷处理后，合金的强度最高，水冷次之，炉冷最低，而冲击性能与强度相反，在塑性方面，经水冷处理后，合金的塑性最佳，炉冷次之，空冷最差。合金在两相区加热保温2 h后以不同方式冷却处理后，拉伸和冲击断口微观形貌均以韧窝和解理面为主，其中炉冷试样的冲击断口形貌中具有较多二次裂纹，经单相区加热后，空冷试样的拉伸和冲击断口形貌产生较大变化，出现结晶状和河流状形貌。

关键词(KeyWords)： TC16钛合金;冷却方式;微观组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 自治区创新环境(人才、基地)建设专项(XJQY2009);; 自治区创新环境(人才、基地)建设专项—天山创新团队计划项目(2020D14041)

作者(Author): 李峰丽,张明玉,于成泉,岳旭,同晓乐,张亚峰

DOI: 10.13289/j.issn.1009-6264.2022-0226

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