摘要: |
采用电子束熔丝增材制造技术以TC11钛合金丝材为原料打印实体试块,经双重热处理后,研究其组织特征和力学性能。结果表明:基材组织为等轴组织,在基材与增材金属结合处观察到魏氏组织,增材金属组织为α+β相重复交错的网篮组织。电子束增材金属的拉伸性能特点为高强低塑高韧,结合处强度低、塑/韧性差。 |
关键词: 电子束;3D打印;热循环;显微组织 |
基金项目: |
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Microstructure and Mechanical Properties of TC11 Titanium Alloy Electron Beam Fuse Additive Manufacturing |
Wang Ningning Han Dong Wu Jun Gao Shikai
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Xi’an Aerospace Power Machinery Co., Ltd.
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Abstract: |
Microstructure and mechanical properties of TC11 titanium alloy substance specimen prepared by electron beam fuse additive manufacturing after the double annealing are investigated. The results show that forging base material has equiaxed microstructure; binding site has the typical widmanstatten microstructure; in the cladding metal the α+β basked-weave microstructure is observed. Tensile properties of the 3D printing metal are high strength, low plasticity and high toughness. Mechanics performance of binding site is poorer. |
Key words: electron beam;3D printing;thermal cycle;microstructure |