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Abstract Using the NACE standard bent��beam test, the behavior of sulfide stress corrosion cracking (SSCC) of different microstructures for X70 grade pipeline steel was investigated. The result showed that the microstructure dominated by fine and homogeneous acicular ferrite had the better resistance to SSCC. Both the high density tangled dislocation and carbonitride precipitated along with dislocation networks inducing acicular ferrite had the better resistance to SSCC.

Key words�� pipeline steel acicular ferrite sulfide stress��corrosion cracking (SSCC)

Received: 01 January 1900

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	XIE Guang��yu
	TANG Di
	WU Hui��bin
	HUANG Guo��jian

Cite this article:

XIE Guang��yu,TANG Di,WU Hui��bin��. Investigation of Sulfide Stress��corrosion Cracking for X70 Pipeline Steel[J]. Chinese Journal of Iron and Steel, 2008, 26(1): 26-0.

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http://gt.chinamet.cn/Jweb_wlcs/EN/ OR http://gt.chinamet.cn/Jweb_wlcs/EN/Y2008/V26/I1/26

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