[1]雷晓维,冯耀荣,张建勋,等.不锈钢焊接接头腐蚀行为研究进展[J].焊管,2015,38(2):37-41.[doi:1001-3938(2015)02-0037-05]
 LEI Xiaowei,FENG Yaorong,ZHANG Jianxun,et al.Research Progress of Corrosion Behavior of Stainless Steels Welded Joints[J].,2015,38(2):37-41.[doi:1001-3938(2015)02-0037-05]
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不锈钢焊接接头腐蚀行为研究进展
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
38
期数:
2015年第2期
页码:
37-41
栏目:
应用与开发
出版日期:
2015-02-28

文章信息/Info

Title:
Research Progress of Corrosion Behavior of Stainless Steels Welded Joints
文章编号:
1001-3938(2015)02-0037-05
作者:
雷晓维12冯耀荣2张建勋1尹成先2白真权2
(1. 西安交通大学 金属材料强度国家重点实验室,西安 710049;
2. 中国石油集团石油管工程技术研究院,西安 710077)
Author(s):
LEI Xiaowei12 FENG Yaorong2 ZHANG Jianxun1 YIN Chengxian2 BAI Zhenquan2
(1. State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China;
2. CNPC Tubular Goods Research Institute, Xi’an 710077, China)
关键词:
不锈钢焊接点蚀应力腐蚀晶间腐蚀
Keywords:
stainless steel welding pitting stress corrosion intergranular corrosion
分类号:
TG142.71
DOI:
1001-3938(2015)02-0037-05
文献标志码:
A
摘要:
总结了目前不锈钢焊接接头的点蚀、应力腐蚀和晶间腐蚀行为的最新研究进展,并对不锈钢焊接接头腐蚀行为及机理进行了分析。分析表明,不锈钢焊接接头腐蚀的根本原因是由于焊接复杂的温度场及较高的热输入,使不锈钢焊接接头中σ相,Cr23C6,Cr7C3和Cr2N等化合物析出,造成了组织中Cr和Mo等元素的不均匀分布。指出,减少热输入、增大冷速、加入合金元素以及焊后热处理等可以抑制化合物的析出,减少已经存在的析出相及降低元素的不均匀分布现象,从而提高不锈钢焊接接头的耐蚀能力。
Abstract:
In this article, it summarized the recent research progress of stainless steels welded joints from pitting; stress corrosion and intergranular corrosion, and analyzed the corrosion behaviors and mechanisms of stainless steels welded joints. The results indicated that the primary reason for welded joints corrosion is complex temperature field and high heat input made σ phase, Cr23C6,Cr7C3 and Cr2N precipitate, and caused uneven distribution of Cr and Mo elements in structure. It pointed out that reducing heat input, increasing cooling speed, adding alloying elements and postweld heat treatment can restrain chemical compound precipitation, decrease the uneven distribution of elements to increase corrosion resistance of stainless steel welded joints.

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备注/Memo

备注/Memo:
收稿日期:2014-10-29
作者简介:雷晓维(1987—),男,陕西华阴人,在读博士,研究方向为石油管材的腐蚀与防护。
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