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材料研究学报  1988, Vol. 2 Issue (6): 45-50    
  研究论文 本期目录 | 过刊浏览 |
18%Ni马氏体时效钢的超塑性
尹钟大;周永康
哈尔滨工业大学金属材料及工艺系;哈尔滨工业大学金属材料及工艺系
SUPERPLASTIC PHENOMENON IN 1.8% Ni MARAGING STEEL
YIN Zhongda;ZHOU Yongkang(Dept.of Metals Material and Technology;Harbin Institute of Technology)
引用本文:

尹钟大;周永康. 18%Ni马氏体时效钢的超塑性[J]. 材料研究学报, 1988, 2(6): 45-50.
, . SUPERPLASTIC PHENOMENON IN 1.8% Ni MARAGING STEEL[J]. Chin J Mater Res, 1988, 2(6): 45-50.

全文: PDF(1429 KB)  
摘要: 本文采用热形变动态再结晶+冷变形后静态再结晶的复合工艺,对两种18%Ni(2.45GPa)马氏体时效钢进行晶粒细化处理,奥氏体平均晶粒直径分别为2.5和5μm。在837℃,拉伸速度为0.1mm/min时,最大延伸率为300%,最大流变应力仅为94MPa。应变速率敏感性指数(m)为0.40,拉伸试样的断裂是由于晶粒长大伴随沿晶界空洞形核、长大、连接的结果。
Abstract:The process consisting of dynamical recrystallization during heat deforma-tion+static recrystallization during cold deformation is used to refine gr-ains in 18%Ni(2.45GPa)maraging steel.The average grain size of refinedaustenite is 2.5 and 5μm respectivel
收稿日期: 1988-12-25     
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