• CN:11-2187/TH
  • ISSN:0577-6686

›› 1998, Vol. 34 ›› Issue (6): 11-15,2.

• 论文 • 上一篇    下一篇

提高高锰奥氏体超低温钢低温韧性的方法

薛侃时;孙大涌;王滨;沈佳球;王位   

  1. 机械工业部上海材料研究所;机械工业部机械科学研究院
  • 发布日期:1998-11-01

METHODS FOR IMPROVING LOW TEMPERATURE TOUGHNESS OF HIGH MANGANESE AUSTENITIC CRYOGENIC STEELS

Xue Kanshi;Sun Dayong;Wan Bin;Shen Jiaqiu;Wang Wei   

  1. Shanghai Research Institute of Materials, MMI Research Institute of Machinery Science and technology, MMI
  • Published:1998-11-01

摘要: 研究改进热处理工艺和加入合金元素来消除锰在奥氏体晶界上的不平衡偏聚以提高钢的低温韧性。降低固溶处理温度和冷却速度,以及在钢中加入铬、硼和钼,消除了锰的不平衡偏聚从而提高了高锰奥氏体超低温钢的低温韧性。

关键词: 不平衡偏聚, 低温钢, 低温韧性, 高锰钢

Abstract: In order to eliminate nonequilibrium segregation of manganese at grain boundaries and increase low temperature toughness, the research work of improving heat treatment process and adding alloying elements are taken. The nonequilibrium segregation of manganese are eliminated by decreasing solution treating temperature and cooling rate and adding chromium, boron and molybdenum, thus, the low temperature toughness of high manganese austenitic steels are improved.

Key words: Cryogenic steel, High manganese steel, Low temperature toughness, Nonequilibrium segregation

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