Effect of austenisation temperature on phase transformation in low carbon microalloyed pipeline steel

被引：6
|
作者：
Zhang, D. T. [1 ]
Qiao, Z. X. [1 ,2 ]
Liu, Y. C. [1 ]
Huo, J. [1 ]
Chen, Y. [1 ]
Yan, Z. S. [1 ]
机构：
[1] Tianjin Univ, Sch Mat Sci & Engn, State Key Lab Hydaul Engn Simulat & Safety, Tianjin 300072, Peoples R China
[2] Tianjin Univ Commerce, Sch Mech Engn, Tianjin 300134, Peoples R China
来源：
MATERIALS RESEARCH INNOVATIONS | 2013年 / 17卷
基金：
中国国家自然科学基金;
关键词：
Austenisation; Pipeline steel; Phase transformation; Acicular ferrite; AUSTENITE GRAIN-SIZE; LOW-ALLOY STEEL; ACICULAR FERRITE; BEHAVIOR;
D O I：
10.1179/1432891713Z.000000000215
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A detailed investigation was carried out on the effect of austenisation temperature on the phase transformation in X65 microalloyed pipeline steel during continuous cooling at a rate of 200 degrees C min(-1) by means of high resolution dilatometric measurement and microstructure observation. The results showed that with austenisation temperature increasing in the range of 850-1000 degrees C, phase transformation temperature range shifts to lower temperatures and the formation of acicular ferrite phase is promoted. Furthermore, the increase in austenisation temperature results in refined grains after continuous cooling to room temperature, associating with the appearance of acicular ferrite structure in steel. The present investigation is helpful to optimise the parameters of rolling or heat treatment technology in industrial production of X65 steel.
引用
收藏
页码：S200 / S204
页数：5
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