Investigation of mechanical behavior of quenched Ti-6Al-4V alloy by microindentation

被引：41
作者：
Cai, Jun [1 ]
Li, Fuguo [1 ]
Liu, Taiyin [1 ]
Chen, Bo [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Mat Sci & Engn, Xian 710072, Peoples R China
来源：
MATERIALS CHARACTERIZATION | 2011年 / 62卷 / 03期
关键词：
Ti-6Al-4V alloy; Microindentation experiments; Quenching temperatures; Mechanical behavior; DEFORMATION-BEHAVIOR; YOUNGS MODULUS; HEAT-TREATMENT; HOT-WORKING; HARDNESS; STRENGTH; SIZE; MICROSTRUCTURE; POLYMERS; TITANIUM;
D O I：
10.1016/j.matchar.2011.01.011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper investigated the micro mechanical behavior of quenched Ti-6Al-4V alloy, microindentation experiments were performed in a wide range of maximum loads: 200, 300, 500, 700, 1000, 1500, 2000, 3000, 3500 and 4900 mN, and loading speeds: 10, 40 and 103 mN/s. The results revealed that loading speed had little influence on measurement of hardness and Young's modulus. Microindentation hardness experiments showed strong indentation size effects. Indentation hardness as well as Young's modulus decreased with the increase of indentation load. The decrease of Young's modulus was due to the damage of materials. The analysis of plastic behavior revealed that quenching temperatures had little effect on strain hardening exponent n, but had significant influence on yield stress sigma(y). (C) 2011 Elsevier Inc. All rights reserved.
引用
收藏
页码：287 / 293
页数：7
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