Compositional variation and microstructural evolution in laser additive manufactured Ti/Ti-6Al-2Zr-1Mo-1V graded structural material

被引：41
作者：
Liang, Yao-Jian [1 ]
Tian, Xiang-Jun [1 ]
Zhu, Yan-Yan [1 ]
Li, Jing [1 ]
Wang, Hua-Ming [1 ]
机构：
[1] Beihang Univ, Sch Mat Sci & Engn, Minist Educ Laser Direct Mfg Large Metall Compone, Engn Res Ctr, Beijing 100191, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2014年 / 599卷
关键词：
Laser additive manufacturing; Graded structural material; Titanium alloys; Microstructure; Hardness; PHASE EVOLUTION; TITANIUM-VANADIUM; GRADIENT MATERIAL; ALLOY; DEPOSITION; DIFFUSION;
D O I：
10.1016/j.msea.2014.01.092
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The compositional variation and the microstructural evolution in laser additive manufactured Ti/Ti-6Al-2Zr-1Mo-1V graded structural material were investigated. An anomalous compositional variation and its good correlation with hardness were found. Although, during the forming process, the ratio of Ti-6Al-2Zr-1Mo-1V in feeded powders abruptly changes from 0% to 100%, all the elements exhibit a gradual variation, which is preferred to a graded material because such gradient change can decrease the discontinuity of its microstructures and properties and can remarkably reduce the costs due to the simplified manufacturing process and the rational distribution of materials. (c) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：242 / 246
页数：5
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