Research on Isothermal Phase Transformation Kinetics of TC21 Alloy

被引：0
|
作者：
Wang, Qingfeng [1 ,2 ]
Zhu, Caichao [1 ]
Xin, Dezhong [1 ,2 ]
Zhang, Mingjin [2 ]
Wang, Xiwei [2 ]
机构：
[1] Chongqing Univ, Coll Mech Engn, Chongqing 400037, Peoples R China
[2] China Coal Technol & Engn Grp Corp, Chongqing Res Inst, Chongqing 400039, Peoples R China
来源：
ADVANCED ENGINEERING MATERIALS III, PTS 1-3 | 2013年 / 750-752卷
关键词：
Titanium alloy; Kinetics; Martensite; Metallography; ORTHORHOMBIC MARTENSITE; DECOMPOSITION; RESISTIVITY; BEHAVIOR;
D O I：
10.4028/www.scientific.net/AMR.750-752.743
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The kinetics of the martensite decomposition in TC21 alloy under isothermal conditions has been studied using dilatometry technique. The typical morphologies of decomposition products were also directly observed. At 500 degrees C and 550 degrees C, the mechanism of martensite decomposition occur by (alpha '' -> alpha + alpha '')(enriched) (-> alpha + beta)(metastable) (-> alpha + beta) at temperature between 600 degrees C and 750 degrees C, the martensite decompose by (alpha '' -> alpha' + beta)(metastable) (-> alpha + beta). up 800 degrees C, the martensite directly transform to alpha and beta phase. Time temperature transformation diagram with iso-lines tracing the amount of the martensite decomposition have been established.
引用
收藏
页码：743 / +
页数：2
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