Comparative study of heat treatment effects on the mechanical properties of laser directed energy deposited Ti6Al4V alloy with and without ultrasonic impact treatment

被引：0
作者：
Yu, Wenze [1 ]
Wang, Fubin [1 ]
Liu, Yuke [1 ]
Jiang, Fengchun [2 ]
Zarinejad, Mehrdad [3 ]
Tong, Yunxiang [1 ]
机构：
[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Int Joint Lab Adv Nanomat Heilongjiang Prov, Harbin 150001, Peoples R China
[2] Harbin Engn Univ, Yantai Grad Sch, Yantai 264006, Peoples R China
[3] Wenzhou Hongfeng Elect Alloy Co Ltd, Res & Dev Ctr, Wenzhou 325026, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2025年 / 929卷
基金：
中国国家自然科学基金;
关键词：
Laser directed energy deposition; Ti6Al4V; Ultrasonic impact treatment; Heat treatment; Mechanical properties; MICROSTRUCTURE;
D O I：
10.1016/j.msea.2025.148127
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In present work, the mechanical properties and microstructure of laser directed energy deposited (LDED) Ti6Al4V alloy with/without ultrasonic impact treatment (UIT) were investigated after heat treatment. The results show that a combination of UIT and heat treatment is effective in optimizing the mechanical properties of Ti6Al4V alloy. The sample subjected to UIT and heat treatment exhibits higher mechanical strength and elongation in comparison with the sample only subjected to heat treatment. This is mainly related with the grain boundary strengthening resulting from the smaller width of the recrystallized alpha lath in the former.
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页数：5
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