汽油机EGR用超纯铁素体J444E不锈钢高温性能研究
Research on High Temperature Performance of Ultrapure Ferrite J444E Stainless Steel for EGR in Gasoline Engine
李玉峰 1王长波 1潘吉祥 1靳塞特1
作者信息
- 1. 甘肃酒钢集团宏兴钢铁股份有限公司 钢铁研究院,甘肃 嘉峪关 735100
- 折叠
摘要
根据汽油机EGR冷却器工况特性和对材料的要求,开发出适应复杂环境下性能优良、成本低廉的超纯铁素体不锈钢材料J444E钢.通过对 200～630℃、900～1 050℃中高温力学性能及 900～1 050℃不同温度下 100～500 h不同时间及 900℃钎焊前后高温氧化性能和氧化层的试验研究和分析,表明该材料在工况环境下具有良好的力学和抗氧化性能.
Abstract
According to the working characteristics and material requirements of EGR coolers of gasoline engines,the ultra-pure ferritic stainless steel J444E steel with excellent performance and low cost is developed.Through the experimental re-search and analysis of the mechanical properties of 200～630℃,900～1 050℃and the high temperature oxidation proper-ties and oxide layers of 100～500 h at different temperatures of 900～1 050℃and before and after brazing at 900℃,the results show that the material has good mechanical and antioxidant properties under working conditions.
关键词
EGR冷却器/J444E钢/高温力学性能/高温氧化性能Key words
EGR cooler/J444E steel/high temperature mechanical properties/high temperature oxidation property引用本文复制引用
出版年
2024
NETL
NSTL
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