Experimental study on 830 Mpa grade pipeline steel containing chromium

被引:8
作者
Ren, Yi [1 ]
Zhang, Shuai [1 ]
Wang, Shuang [1 ]
Liu, Wen-yue [1 ]
机构
[1] Anshan Iron & Steel Co Ltd, Ctr Tech, Anshan 114009, Peoples R China
关键词
chromium; high strength; pipeline steel; thermo-mechanical controlled process; MECHANICAL-PROPERTIES;
D O I
10.1016/S1674-4799(09)60049-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The diversity of microstructure and properties of 830 MPa grade pipeline steel containing chromium was investigated by optical microscope and transmission electron microscopy. The main microstructures were multiple configurations, containing lath bainite and granule bainite. Mechanical properties test results showed that the yield strength and tensile strength improved with increasing chromium content. The toughness and elongation decreased at the same time, so temper process was introduced. Appling proper temper parameters, the values of toughness and elongation were improved dramatically, and the strength decreased slightly.
引用
收藏
页码:273 / 277
页数:5
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