[1]冯玉兰,李 睿.2507超级双相不锈钢焊接及热处理工艺研究[J].焊管,2018,41(5):14-19.[doi:10.19291/j.cnki.1001-3938.2018.05.003]
 FENG Yulan,LI Rui.Study on Welding and Heat Treatment Process of 2507 Super Duplex Stainless Steel[J].,2018,41(5):14-19.[doi:10.19291/j.cnki.1001-3938.2018.05.003]
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2507超级双相不锈钢焊接及热处理工艺研究()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
41
期数:
2018年第5期
页码:
14-19
栏目:
试验与研究
出版日期:
2018-05-28

文章信息/Info

Title:
Study on Welding and Heat Treatment Process of
2507 Super Duplex Stainless Steel
文章编号:
10.19291/j.cnki.1001-3938.2018.05.003
作者:
冯玉兰1李 睿2
1. 中钢不锈钢管业科技山西有限公司,山西 晋中 030600;
2. 晋西车轴股份有限公司,太原 030027
Author(s):
FENG Yulan 1 LI Rui 2
1. Sinosteel Stainless Steel Pipe Technology Co., Ltd., Jinzhong 030600, Shanxi, China;
2. Jinxi Axle Co., Ltd., Taiyuan 030027, China
关键词:
焊接2507超级双相不锈钢焊接工艺热处理工艺相比例
Keywords:
welding 2507 super duplex stainless steel welding process heat treatment process phase ratio
分类号:
TG444
DOI:
10.19291/j.cnki.1001-3938.2018.05.003
文献标志码:
A
摘要:
为了获得性能良好的2507超级双相不锈钢焊接接头,通过力学、金相及腐蚀等试验手段,对两种焊接及热处理工艺下的2507超级双相不锈钢焊接接头的组织及性能进行了研究。结果表明:采用混合气体保护的焊接工艺,焊后以1 050 ℃、保温13~15 min的热处理工艺处理后,焊接试样焊缝位置第三相析出严重且两相比例相差较大,导致焊缝脆性增大,焊缝性能不能满足相关标准的要求;以纯氩气保护、采用较小线能量的多层多道次焊接工艺,焊后以1 100 ℃、保温50~55 min的热处理工艺处理后,焊接试样焊缝位置的相比例相对均匀,焊缝各项性能良好,满足相关标准的要求。
Abstract:
In order to obtain good performance of 2507 super duplex stainless steels welded joints, the microstructure and properties of welded joints under two welding processes and heat treatment processes were studied by mechanical, metallographic and corrosion tests. The results showed that the welding process of mixed gas protection after heat treatment of 1 050 ℃ and heat insulation for 13~15 min after welding, the third phase of welded joint was seriously precipitated and the two-phase ratio differed considerably, which caused the brittleness of welded joints increasing and the performance of weld couldn’t meet the requirements of the relevant standards. By welding process of pure argon gas protection, low line energy, multi-layer, multi-pass, the heat treatment process of 1 100 ℃,heat insulation for 50~55 min,the phase ratio of welded joints was relatively uniform, and all performances of welded joints met relevant standards.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-02-03
作者简介:冯玉兰(1991—),女,硕士,工程师,主要从事不锈钢、不锈钢复合管及有色金属钢管的焊接工艺研发工作。
更新日期/Last Update: 2018-05-28