[1]夏正文,许全光,马世龙,等.316L不锈钢焊管应变时效状态的耐晶间腐蚀性能研究[J].焊管,2021,44(8):7-10,16.[doi:10.19291/j.cnki.1001-3938.2021.08.002]
 XIA Zhengwen,XU Quanguang,MA Shilong,et al.Intergranular Corrosion Resistance of 316L Stainless Steel Welded Pipe under Strain Aging State[J].,2021,44(8):7-10,16.[doi:10.19291/j.cnki.1001-3938.2021.08.002]
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316L不锈钢焊管应变时效状态的耐晶间腐蚀性能研究()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
第44卷
期数:
2021年第8期
页码:
7-10,16
栏目:
试验与研究
出版日期:
2021-08-28

文章信息/Info

Title:
Intergranular Corrosion Resistance of 316L Stainless Steel Welded Pipe under Strain Aging State
文章编号:
10.19291/j.cnki.1001-3938.2021.08.002
作者:
夏正文许全光马世龙刘 蔚颜俊杰吴胜强
1. 浙江天管久立特材有限公司,浙江 湖州 313012;
2. 浙江久立特材科技股份有限公司,浙江 湖州 313008
Author(s):
XIA Zhengwen XU Quanguang MA Shilong LIU Wei YAN Junjie WU Shengqiang
1. Zhejiang TPCO-Jiuli Composite Metals Co., Ltd., Huzhou 313012, Zhejiang, China;
2. Zhejiang Jiuli Hi-Tech Metals Co., Ltd., Huzhou 313008, Zhejiang, China
关键词:
316L不锈钢焊缝晶间腐蚀交货态应变时效态固溶热处理
Keywords:
316L stainless weld intergranular corrosion annealing state strain aging state solution heat treatment
分类号:
TG113.23
DOI:
10.19291/j.cnki.1001-3938.2021.08.002
文献标志码:
A
摘要:
为了使316L不锈钢焊管满足双金属机械复合管内衬管的要求,采用晶间腐蚀试验,对内衬焊管母材以及无填充金属或添加不同焊丝的焊缝在交货态及应变时效态的抗晶间腐蚀能力进行了研究。结果表明,焊管母材和无填充金属的焊缝在交货态和应变时效处理态,其抗晶间腐蚀的能力满足ASTM A262 E法标准要求;添加ER316L、ER317L焊丝的焊缝只能在交货态满足要求,在应变时效态无法满足要求;而添加ER385和ERNiCrMo-3焊丝的焊缝在交货态和应变时效态都无法通过检测;焊缝金相分析中,发现不同试样的铁素体分布存在明显差异。另外,结合Lippold凝固模式和Suutala焊缝开裂敏感性预测模型,解释了不同焊缝开裂敏感性的差异。
Abstract:
In order to make 316L stainless steel welded pipe meet the requirements of mechanically bimetallic composite pipe liner the intergranular corrosion resistance of welded pipe base metal and weld without filler metal or with different welding wires in annealing state and strain aging state were studied by intergranular corrosion test. The results show that the resistance to intergranular corrosion of welded pipe base metal and weld without welding wire can meet the requirements of ASTM A262 E method in annealing state and strain aging state. The weld with ER316L and ER317L can only meet the requirements in the annealing state, but can not meet the requirements in the strain aging state. However, the weld with ER385 and ERNiCrMo-3 welding wires can not pass the test in the annealing state and strain aging state. In the metallographic analysis of the weld, it is found that the ferrite distribution of different samples is obviously different. In addition, the difference of cracking sensitivity of different welds was explained by combining Lippold solidification model and Suutala weld cracking sensitivity prediction model.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2021-06-15
作者简介:夏正文(1979—),男,安徽芜湖人,硕士,高级工程师,现主要从事双金属复合管的研究和开发工作。
更新日期/Last Update: 2021-08-27