Effects of post-aging cooling condition on structure and tensile properties of aged Ti-7.5Mo alloy

被引：10

作者：

Chen, Yen-Chun ^{[1
]}

Lin, Jiin-Huey Chern ^{[1
]}

Ju, Chien-Ping ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 70101, Taiwan

来源：

MATERIALS & DESIGN | 2014年 / 54卷

关键词：

Titanium alloys; Microstructure; Mechanical properties; TI-MO ALLOYS; MECHANICAL-PROPERTIES; TITANIUM-ALLOYS; CAST TI-7.5MO; BEHAVIOR; PHASE; TI-6AL-4V;

D O I：

10.1016/j.matdes.2013.08.029

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present study investigated the effects of post-aging cooling condition on tensile properties of an aged Ti-7.5 wt% Mo alloy. Experimental results indicated that the solution-treated (ST) Ti-7.5Mo samples were comprised substantially of alpha '' phase, while all aged samples demonstrated the co-existence of alpha' and beta phases therein. The relative amount of beta phase retained in the aged alloy was found sensitive to post-aging cooling condition. Water-quenched (WQ) alloy had the highest beta phase content, while furnace-cooled (FC) alloy had the lowest beta phase content. The Mo concentration in beta phase was also sensitive to post-aging cooling condition. The average Mo concentration in beta phase was found highest in FC samples and lowest in WQ samples. Compared to ST samples, all aged samples demonstrated significant increases in yield strength and modulus values, along with decreases in elongation. The effect of post-aging cooling condition on microhardness was similar to that on strength. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：515 / 519

页数：5

共 28 条

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