Microstructures and Mechanical Properties of Laser Rapid Prototyping Deposited TC4 Alloy

被引：2
|
作者：
Liu J. [1 ]
Liu Y.-T. [1 ]
机构：
[1] School of Sciences, Northeastern University, Shenyang
来源：
Liu, Jing (liu_sy20022002@163.com) | 2018年 / Northeast University卷 / 39期
关键词：
Laser rapid prototyping; Mechanical property; Microstructure; TC4; alloy;
D O I：
10.12068/j.issn.1005-3026.2018.08.014
中图分类号：
学科分类号：
摘要：
Microstructures and mechanical properties of laser rapid prototyping deposited TC4 alloy in the parallel and vertical directions were studied by metallographic microscope, scanning electron microscopy and electronic tensile testing machine. The results showed that the β grains growing in the deposited direction are coarse and columnar, which shows a bright and dark strip structure and is typical Widmanstatten structure. The strength vertical to deposition direction is higher than that parallel with deposition direction, but the plasticity is low. The fracture of the alloy is dimple fracture, and the size of the dimples on the fracture vertical to deposition direction is smaller than that parallel with deposition direction. © 2018, Editorial Department of Journal of Northeastern University. All right reserved.
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页码：1132 / 1136
页数：4
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