[1]白 昶,刘奇望,蒋 勇,等.核级高压汽缸用马氏体不锈钢焊条CHK207Ni的研制[J].焊管,2018,41(9):1-5.[doi:10.19291/j.cnki.1001-3938.2018.09.001]
 BAI Chang,LIU Qiwang,JIANG Yong,et al.evelopment of Martensitic Stainless Steel Welding Rod CHK207Ni for Nuclear High Pressure Cylinder[J].,2018,41(9):1-5.[doi:10.19291/j.cnki.1001-3938.2018.09.001]
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核级高压汽缸用马氏体不锈钢焊条
CHK207Ni的研制
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
41
期数:
2018年第9期
页码:
1-5
栏目:
试验与研究
出版日期:
2018-09-28

文章信息/Info

Title:
evelopment of Martensitic Stainless Steel Welding Rod CHK207Ni for
Nuclear High Pressure Cylinder
文章编号:
10.19291/j.cnki.1001-3938.2018.09.001
作者:
白 昶1刘奇望1蒋 勇1袁 宁1谭小平2郑亮亮2张红涛2吴海峰2
1. 四川大西洋焊接材料股份有限公司,四川 自贡 643010;
2. 东方电气集团东方汽轮机有限公司,四川 德阳 618000
Author(s):
BAI Chang 1  LIU Qiwang 1  JIANG Yong 1  YUAN Ning 1  TAN Xiaoping 2  ZHENG Liangliang 2  ZHANG Hongtao 2  WU Haifeng 2
1. Sichuan Atlantic Welding Materials Co., Ltd., Zigong 643010, Sichuan, China;
2. Dongfang Turbine Co., Ltd., Dongfang Electric Corporation, Deyang 618000, Sichuan, China
关键词:
焊接核级高压汽缸马氏体不锈钢焊条热处理道间温度
Keywords:
welding nuclear grade high pressure cylinder martensitic stainless steel welding rod heat treatment interlayer temperature
分类号:
TG422.1
DOI:
10.19291/j.cnki.1001-3938.2018.09.001
文献标志码:
A
摘要:
为了实现核电设备用焊接材料的国产化,研制了一种用于核级高压汽缸的马氏体不锈钢焊条CHK207Ni,并采用该焊条进行了全位置焊接、熔敷金属和第三方工艺评定试验。试验结果表明,道间温度控制在280~300 ℃,热处理工艺为680 ℃保温12 h、750 ℃保温1 h时,焊缝金属力学性能最优,20 ℃时冲击功大于60 J;采用该焊材焊接,工艺性能优良,满足用户技术要求。研究结果表明,随着焊接道间温度的升高,熔敷金属冲击韧性降低;通过热处理保温温度的提高或者延长保温时间,可使焊缝组织转变为更加均匀的回火索氏体,熔敷金属具有良好的冲击韧性。
Abstract:
In order to realize the localization of welding materials for nuclear power equipment, a martensitic stainless steel welding rod CHK207Ni for nuclear high-pressure cylinders was developed, and the welding rod was used for all-position welding and third-party process assessment. The test results show that when the interlayer temperature is controlled at 280~300 ℃, and the heat treatment process is 680 ℃ maintenance 12 h and 750 ℃ maintenance 1 h, the mechanical properties of the weld metal are the best, and the impact energy is more than 60 J. The welding material is used for welding, and the welding process performance is excellent, which can meet the technical requirements of the user. The results show that as the interlayer temperature increases, the impact toughness of the deposited metal decreases. By increasing the heat treatment temperature or prolonging the holding time, the weld structure is transformed into a fine uniform tempered sorbite, and the deposited metal can obtain good impact toughness.

参考文献/References:

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备注/Memo

备注/Memo:

收稿日期:2018-06-19

作者简介:白 昶(1988—),男,助理工程师,主要从事焊接材料的研究。

更新日期/Last Update: 2018-11-02