李瑞,关蕾,冯秋元,王小翔,王鼎春,郭金榜,王永强

• 1:宝钛集团有限公司
• 2:宝鸡钛业股份有限公司

摘要(Abstract)：

采用3种轧制工艺制备了δ42 mm×2100 mm×8000 mmTC4ELI钛合金板材,利用光学显微镜和万能拉伸试验机分析不同轧制工艺对TC4ELI宽幅厚板材的组织与性能的影响。结果表明:3种轧制工艺制备的板材组织分别为典型的变形魏氏、网篮和等轴组织,等轴组织具有较多的等轴初生α相,可产生均匀的应变,因此塑性良好;由于保留有原始β晶界的魏氏组织和网篮组织中的片状和短板条状的α束域取向不同使裂纹扩展路径变得曲折,故韧性较高,3种组织中网篮组织的强韧性匹配较好。根据海洋工程用钛合金材的工况条件,优选出合金强韧性匹配较好的轧制工艺。

关键词(KeyWords)： TC4ELI钛合金;宽幅厚板;组织;力学性能

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 李瑞,关蕾,冯秋元,王小翔,王鼎春,郭金榜,王永强

DOI: 10.13289/j.issn.1009-6264.2019-0297

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