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Novel Cu-bearing high-strength pipeline steels with excellent resistance to hydrogen-induced cracking
Shi, Xianbo; Yan, Wei; Wang, Wei; Shan, Yiyin; Yang, Ke; xbshi14b@imr.ac.cn; kyang@imr.ac.cn
2016
发表期刊MATERIALS & DESIGN
ISSN0261-3069
卷号92页码:300-305
摘要There is a great challenge to simultaneously improve strength and resistance to hydrogen-induced cracking (HIC) for pipeline steels. In this study, through copper (Cu) alloying, a novel type of pipeline steel was developed to meet the requirement for both high strength and excellent resistance to HIC. The HIC tests of the tentative pipeline steels and the comparison steel were conducted in a hydrogen sulfide (H2S) saturated solution according to NACE standard. The results showed that an acicular ferrite microstructure with uniformly distributed fine Cu rich precipitates was obtained by aging at 500 degrees C for I h. Nano-scale Cu-rich precipitates in the new steels were speculated to play a significant role in making precipitation strengthening and providing beneficial hydrogen traps. The Cu-bearing pipeline steel has achieved a high strength grade of API X120 with excellent resistance to HIC (C) 2015 Elsevier Ltd. All rights reserved.
部门归属[shi, xianbo ; yan, wei ; wang, wei ; shan, yiyin ; yang, ke] chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china ; [shi, xianbo] univ chinese acad sci, beijing 100049, peoples r china
关键词Pipeline Steel Hydrogen-induced Cracking Copper Cu-rich Precipitates Microstructure
资助者National Key Technologies R&D Program of China [2011BAE25B03]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/75027
专题中国科学院金属研究所
通讯作者xbshi14b@imr.ac.cn; kyang@imr.ac.cn
推荐引用方式
GB/T 7714
Shi, Xianbo,Yan, Wei,Wang, Wei,et al. Novel Cu-bearing high-strength pipeline steels with excellent resistance to hydrogen-induced cracking[J]. MATERIALS & DESIGN,2016,92:300-305.
APA Shi, Xianbo.,Yan, Wei.,Wang, Wei.,Shan, Yiyin.,Yang, Ke.,...&kyang@imr.ac.cn.(2016).Novel Cu-bearing high-strength pipeline steels with excellent resistance to hydrogen-induced cracking.MATERIALS & DESIGN,92,300-305.
MLA Shi, Xianbo,et al."Novel Cu-bearing high-strength pipeline steels with excellent resistance to hydrogen-induced cracking".MATERIALS & DESIGN 92(2016):300-305.
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