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金属学报  1982, Vol. 18 Issue (5): 550-642    
  论文 本期目录 | 过刊浏览 |
中高温区碳素钢的拉伸变形行为
罗锡裕;今村淳
冶金工业部钢铁研究总院;日本新日本制铁(株)基础研究所
TENSILE DEFORMATION BEHAVIOUR OF CARBON STEEL UNDER MEDIUM-HIGH TEMPERATURE
Luo Xiyu (Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing); Imamura Jun (Fundamental Research Laboraties; Nippon Steel Corporation; Japan)
引用本文:

罗锡裕;今村淳. 中高温区碳素钢的拉伸变形行为[J]. 金属学报, 1982, 18(5): 550-642.
, . TENSILE DEFORMATION BEHAVIOUR OF CARBON STEEL UNDER MEDIUM-HIGH TEMPERATURE[J]. Acta Metall Sin, 1982, 18(5): 550-642.

全文: PDF(4295 KB)  
摘要: 本文系统地研究了起始γ晶粒尺寸约800μm,含碳量分别为0.10,0.25,0.39,0.71%的四种碳素钢在试验温度700—1300℃,变形速率6.7×10~(-4)—6.7×10~(-2)S~(-1)下的拉伸变形行为。着重指明:由热激活过程决定的γ相区的变形方程符合(?)=Aσ_M~nexp(-Q/RT);γ相区最大变形应力随含碳量的增加而下降;在(α+γ)二相区稍低于A_3温度出现脆化;二相区的脆化随含碳量的增加而趋缓和。
Abstract:A systematical study was made of the tensile deformation behaviour of 4 different carbon steels, containing 0.10, 0.25, 0.39 and 0.71% C respectively, with initial austenite grain size 800μm under temperature 700—1300℃ at the strain rate 6.7×10~(-4)—6.7×10~(-2)S~(-1). It was indicated that the equation of deformation in the region of austenite phase controlled by the heat activation process is quite agreed with (?)=Aσ_M~nexp(-Q/RT) and the maximum deformation stress is decreased with the increasing of their C content. In the binary phase α+γ region, an embrittlement appears under temperature slightly lower than A_3 point and may become more or less to toughen as the increase of the C content.
收稿日期: 1982-05-18     
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