低温用碱性不锈钢焊条E308L-15的研制

靳树强; 马风辉

doi:10.12073/j.hj.20191228001

低温用碱性不锈钢焊条E308L-15的研制

奥钢联伯乐焊接(中国)有限公司, 江苏苏州 215126

详细信息

作者简介:
靳树强,1982年出生,硕士,工程师;主要从事焊接材料的开发和工艺研究等工作。

中图分类号: TG422.1
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- 文章访问数: 23
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出版历程
- 收稿日期: 2019-12-27

Development of E308L-15 stainless steel electrode for cryogenic application

voestalpine Bö hler Welding (China) Co., Ltd., Suzhou 215126, Jiangsu, China

摘要

摘要: 文中介绍一种用于-196 ℃低温环境下的碱性奥氏体不锈钢焊条E308L-15。测试了熔敷金属的化学成分、铁素体数、金相组织、耐晶间腐蚀性能、室温强度和-196 ℃低温冲击韧性。结果表明，所开发的E308L-15焊条熔敷金属的金相组织由奥氏体和少量铁素体组成，并且随着熔敷金属氧含量的降低，-196 ℃夏比V形缺口冲击吸收能量增加，讨论了影响熔敷金属低温冲击韧性的因素，提出了提高熔敷金属低温冲击韧性的方法。
- E308L-15 /
- 熔敷金属 /
- 低温冲击韧性 /
- 奥氏体不锈钢
Abstract: This paper introduced the development of E308L-15 stainless steel electrode for cryogenic application（-196 ℃）. The chemical composition,metallurgical structure,ferrite number,intergranular corrosive resistance,tensile strength and Charpy V notch impact absorbed energy at-196 ℃ of deposited metal were investigated. The results showed that the metallurgical structure of deposited metal was composed of austenite and a small amount of ferrite. In the meantime,the impact absorbed energy of Charpy V notch impact test at-196 ℃ increased with the oxygen content decrease of deposited metal. The factors that influenced the low-temperature impact toughness were discussed. Moreover,the method that could improve the low-temperature impact toughness was proposed.
- E308L-15 /
- deposited metal /
- low-temperature impact toughness /
- austenitic stainless steel

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参考文献(9)

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