Yi Ren, Shuai Zhang, Shuang Wang, and Wen-yue Liu, Experimental study on 830 MPa grade pipeline steel containing chromium, Int. J. Miner. Metall. Mater., 16(2009), No. 3, pp. 273-277. https://doi.org/10.1016/S1674-4799(09)60049-2
Cite this article as:
Yi Ren, Shuai Zhang, Shuang Wang, and Wen-yue Liu, Experimental study on 830 MPa grade pipeline steel containing chromium, Int. J. Miner. Metall. Mater., 16(2009), No. 3, pp. 273-277. https://doi.org/10.1016/S1674-4799(09)60049-2
Yi Ren, Shuai Zhang, Shuang Wang, and Wen-yue Liu, Experimental study on 830 MPa grade pipeline steel containing chromium, Int. J. Miner. Metall. Mater., 16(2009), No. 3, pp. 273-277. https://doi.org/10.1016/S1674-4799(09)60049-2
Citation:
Yi Ren, Shuai Zhang, Shuang Wang, and Wen-yue Liu, Experimental study on 830 MPa grade pipeline steel containing chromium, Int. J. Miner. Metall. Mater., 16(2009), No. 3, pp. 273-277. https://doi.org/10.1016/S1674-4799(09)60049-2
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 bainitc. 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.
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