景然

• 1:陕西理工大学材料科学与工程学院

摘要(Abstract)：

采用X射线衍射仪、光学显微镜、扫描电镜、硬度测试和拉伸试验等方法研究退火处理对TiZrAlV合金的显微组织和力学性能的影响。结果表明:锻造态TiZrAlV合金由α相、β相以及少量fcc相组成;退火处理后,合金发生α+β+fcc→α+β的相变过程,并且β相含量随退火温度升高而增加;TiZrAlV合金锻造态和退火态的微观组织特点为典型的网篮组织,并且随着退火温度的升高,α相片层的厚度逐渐增大;锻造态TiZrAlV合金的屈服强度、最大抗拉强度、伸长率以及硬度分别为833、955 MPa、13.08%以及36.5 HRC;退火处理后合金的屈服强度得到提升,400℃退火的屈服强度为982 MPa,抗拉强度为1136 MPa,而伸长率和硬度变化不大;退火处理后合金的拉伸断口由大量大小不等的韧窝组成,呈现塑性断裂特征。

关键词(KeyWords)： TiZrAlV合金;退火处理;相结构;显微组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51701111);; 陕西省教育厅专项科研计划项目(17JK0158);; 陕西理工大学博士科研基金(SLGQD14-13)

作者(Author): 景然

DOI: 10.13289/j.issn.1009-6264.2018-0123

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