Microstructure and Mechanical Properties of TA15 Alloy Produced by Electron Beam Melting

被引：9
作者：
Ran, Jiangtao [1 ,3 ]
Jiang, Fengchun [2 ]
Chen, Zhuo [3 ]
Zhao, Hong [1 ,3 ]
机构：
[1] Harbin Engn Univ, Coll Mech & Elect Engn, Harbin 150001, Peoples R China
[2] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China
[3] Aerosp Hiwing Harbin Titanium Ind Co Ltd, Harbin 150001, Peoples R China
来源：
METALS AND MATERIALS INTERNATIONAL | 2022年 / 28卷 / 03期
基金：
国家重点研发计划;
关键词：
TA15 titanium alloy; Electron beam melting; Process; Microstructure; Mechanical properties; TRI-MODAL MICROSTRUCTURE; TITANIUM-ALLOY; PURE COPPER; TI-ALLOY; MANUFACTURED TI-6AL-4V; LASER; PARAMETERS; EVOLUTION; EBM; ORIENTATION;
D O I：
10.1007/s12540-021-01079-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A series of TA15 specimens with different process parameters were built by electron beam melting in this paper to systematically investigate the relationship of material-process-microstructure-mechanical properties. A quantitative mathematical model of yield strength and Vickers hardness with respect to a lath thickness was established. Microstructure analysis results showed that the microstructure of TA15 titanium alloy were basketweave microstructure, lamellar microstructure and bimodal microstructure depending on process. In general, the yield strength, Vickers hardness and a plate thickness are correlated with the Hall-Petch equation, but the mathematical model established in this paper has a better fitting effect. Process parameters affect the mechanical properties of the TA15 titanium alloy by affecting a lath thickness, and speed factor has the greatest influence on alpha lath thickness. The tensile properties of TA15 titanium alloy are as well as, if not better than, that of TA15 titanium alloys with tri-modal microstructure.
引用
收藏
页码：770 / 786
页数：17
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