Mechanical behavior of bilayer Ti6Al4V composite under quasi-static and dynamic compression

被引：3

作者：

Wang, Hao ^{[1
]}

Zhang, Hongmei ^{[1
,2
,3
]}

Cheng, Xingwang ^{[1
,2
,3
]}

Mu, Xiaonan ^{[1
,2
,3
]}

Chang, Shuo ^{[1
]}

Feng, Ke ^{[1
]}

Zhang, Jiaqi ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China

[2] Beijing Inst Technol, Tangshan Res Inst, Tangshan 063000, Peoples R China

[3] Natl Key Lab Sci & Technol Mat Shock & Impact, Beijing 100081, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2023年 / 962卷

关键词：

Ti6Al4V; Bilayer composite; Dynamical behavior; BALL-MILLING TIME; DEFORMATION; ALLOY; ROOM;

D O I：

10.1016/j.jallcom.2023.171048

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Bilayer structure and homogeneous structure of Ti6Al4V (TC4) alloy were fabricated by High energy ball milling (HEBM) and Fast Hot-Press Sintering (FHPS). The flake TC4 (F-TC4) powders were obtained from spherical TC4 (S-TC4) powders by HEBM, and the bilayer F/S-TC4 composite was prepared from F-TC4 and S-TC4 powders. The microstructure and micro-hardness evolution along the interface of the bilayer composite were investigated. It was found that the hardness decreased gradually from the F-TC4 side to the S-TC4 side. Moreover, an obvious morphology difference in the interface was observed, typical Widmanstatten structure on the S-TC4 side while an equiaxed structure on the F-TC4 side. In addition, the mechanical properties of the alloy and composite with different structures were studied under quasi-static and dynamic compression. The results revealed that the bilayer F/S-TC4 composite showed great strength improvement with little plasticity sacrifice as compared to traditional S-TC4 alloy.

引用

页数：9

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