[1]何德孚,王晶滢.Cr-Mo 钢管性能和制造质量控制要求评述（续）[J].焊管,2019,42(4):30-37.[doi:10.19291/j.cnki.1001-3938.2019.4.006]
　HE Defu,WANG Jingying,An Evaluation on the Performance and Manufacturing Quality Control for Cr-Mo Steel Pipe[J].,2019,42(4):30-37.[doi:10.19291/j.cnki.1001-3938.2019.4.006]
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Cr-Mo 钢管性能和制造质量控制要求评述（续）()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
42
期数:
2019年第4期
页码:
30-37
栏目:
应用与开发
出版日期:
2019-04-28

文章信息/Info

Title:
An Evaluation on the Performance and Manufacturing Quality Control for Cr-Mo Steel Pipe
文章编号:
10.19291/j.cnki.1001-3938.2019.4.006
作者:
何德孚1; 王晶滢1;  2
1. 上海久立工贸发展有限公司， 上海 200135；
2. 浙江德传管业有限公司， 浙江  湖州 313103
Author(s):
HE Defu1;  WANG Jingying1;  2
1. Shanghai Jiuli Industrial and Trade Development Co., Ltd., Shanghai 200135, China;
2. Zhejiang Datrans Piping Co., Ltd., Huzhou 313103, Zhejiang, China
关键词:
Cr-Mo钢管; 化学成分; 淬硬性; Ⅳ型开裂; 蠕变劣化; 剩余寿命评估
Keywords:
Cr-Mo steel pipe;  chemical composition;  hardenability;  IV type cracking;  creep deterioration;  ;  residual life assessment
分类号:
TG144
DOI:
10.19291/j.cnki.1001-3938.2019.4.006
文献标志码:
A
摘要:
低合金Cr-Mo 钢具有良好的高温强度、抗蠕变、抗氧化及耐腐蚀等综合性能，是石油工业及发电设备中高温高压管道和锅炉用钢的首选钢种。此类钢管服役条件苛刻，制造质量控制要求很高，稍有不慎可能造成使用中的灾难性事故。针对Cr-Mo钢管在工程应用中的重要性，介绍了Cr-Mo 钢的成分设计、组织性能特征、蠕变强化和劣化、成形加工的影响、焊接性和剩余寿命评估等，并对其制造质量控制要求进行了评述。文章指出，Cr-Mo钢的化学成分特点决定了其具有高的可淬硬性和优良高温力学性能，但也造成其加工性能和焊接性能的变差。Cr-Mo 钢焊接裂纹敏感性较高，特别是高温长时间服役中蠕变过程引起的焊接热影响区临界区的孔洞型劣化，是Cr-Mo 钢管工程化应用的致命弱点。因此，防止和延缓这一劣化过程应该成为Cr-Mo 钢管成分设计和加工过程质量控制的研究重点。
Abstract:
Cr-Mo steels which has high-temperature good comprehensive performance, such as high temperature strength, resistance to creep, oxidation and corrosion. It is the first steel of choice for high temperature and high pressure pipelines and boilers in the petroleum industry and power generation equipment. Service environment of the pipe are very critical, and their manufacturing requirement are very high, if a small carelessness in manufacturing process may be creating a big hidden danger to catastrophic failures in their service. In view of the importance of Cr-Mo steel pipe in engineering application, the composition design, microstructure and performance characteristics, creep strengthening and deterioration of Cr-Mo steel, influence of forming process, weldability and residual life assessment are introduced, and the manufacture quality control requirements of Cr-Mo steel pipe were reviewed. The article points out that the chemical composition of Cr-Mo steel determines its high hardenability and excellent high temperature mechanical properties, but also causes its processing properties and welding properties to deteriorate. Cr-Mo steel has high welding crack sensitivity, especially the hole type deterioration in the critical area of welding heat affected zone caused by creep process during long-term service in high temperature, which is a weak point in the engineering application of Cr-Mo steel pipe. Therefore, preventing and delaying this degradation process shou

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备注/Memo

备注/Memo:

收稿日期：2018-12-16

作者简介：何德孚，男，上海交通大学教授，原上海久立焊管研究所所长。

更新日期/Last Update: 2019-05-10