上海大学学报(自然科学版)

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00Cr25Ni2Mo3Mn10N高氮超级双相不锈钢的组织和性能

肖学山1,李钧1,江来珠2,赵钧良2

  

  1. 1.上海大学 材料研究所,上海 200072; 2.宝山钢铁股份有限公司,上海 201900
  • 收稿日期:2008-05-05 修回日期:1900-01-01 出版日期:2008-10-23 发布日期:2008-10-23
  • 通讯作者: 肖学山

Structure and Properties of 00Cr25Ni2Mo3Mn10N High Nitrogen Super Duplex Stainless Steel

XIAO Xue-shan1, LI Jun1, JIANG Lai-zhu2, ZHAO Jun-liang2
  

  1. 1. Institute of Materials, Shanghai University, Shanghai 200072, China;
    2. Baoshan Iron & Steel Co., Ltd., Shanghai 201900, China
  • Received:2008-05-05 Revised:1900-01-01 Online:2008-10-23 Published:2008-10-23
  • Contact: XIAO Xue-shan

摘要: 一种新型的资源节约型高氮超级双相不锈钢00Cr25Ni2Mo3Mn10N开发出来,氮质量分数达到0.5%.研究表明,经热锻和1 050 ℃固溶处理后,基体组织由铁素体和奥氏体组成,铁素体质量分数约为47%,氮质量分数的增加能明显提高材料的机械性能和腐蚀性能.通过对比研究表明,00Cr25Ni2Mo3Mn10N的综合性能相当于或优于00Cr25Ni7Mo4N 超级双相不锈钢.

关键词: 奥氏体, 超级双相不锈钢, 腐蚀性能, 高氮, 机械性能, 铁素体

Abstract: A new resource-saving high nitrogen super duplex stainless steel 00Cr25Ni2Mo3Mn10N has been developed, in which the nitrogen content reaches 0.5%. The results indicate that the alloy is made up of ferrite and austenite after hot forge and 1 050 ℃ solid solution treatment, and the ferrite content is about 47%. Mechanical and corrosion property are noticeably enhanced with the increase of nitrogen. The comprehensive performance of 00Cr25Ni2Mo3Mn10N alloy is as good as that of 00Cr25Ni7Mo4N super duplex stainless steel, and even better.

Key words: austenite, corrosion property, ferrite, mechanical prop
erty,
super duplex stainless steel, high nitrogen

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