| 中碳钢高温形变热处理强化机理探讨 |
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| 引用本文： | 陈军,许伯藩,詹方海.中碳钢高温形变热处理强化机理探讨[J].武汉科技大学学报(自然科学版),1990(1). |
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| 作者姓名： | 陈军 许伯藩 詹方海 |
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| 作者单位： | 广州有色金属研究院，武汉钢铁学院，武汉钢铁学院 |
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| 摘 要： | 经比较高温形变热处理反常规热处理后的55SiMnVB 钢55碳钢的力学性能及组织结构,本文得出了形变强化的原因:形变使位错密度增加及形成稳定的位错亚结构,改变了碳化物的析出和分布以及孪晶结构所处的位置。而形变织构及晶粒的细化,不是形变强化的主要原因。晶粒细化对材料的塑韧性有着较大的影响。
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| 关 键 词： | 中碳钢 高温形变 强化机理 位错 形变 |
ENHANCEMENT MECHANISM OF DEFORMATIVE HIGH TEMPERATURE TREATMENT OF MEDIUM CARBON STEEL |
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| Chen Jun Xu Bofan Zhan Fanghai.ENHANCEMENT MECHANISM OF DEFORMATIVE HIGH TEMPERATURE TREATMENT OF MEDIUM CARBON STEEL[J].Journal of Wuhan University of Science and Technology(Natural Science Edition),1990(1). |
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| Authors: | Chen Jun Xu Bofan Zhan Fanghai |
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| Institution: | Chen Jun Xu Bofan Zhan Fanghai |
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| Abstract: | Cause for deformative ative enhancement is concluded after a comparison between the mechanical properties and metallography of 55Si MnVB steel and 55 carbon steel:It is deformation that increases the den- sity of dislocation and leads to a stable dislocated sabstrueture both of wh- ich alter the segregation and distribution of the carbide and the location of the twin crystalline structurc.But the deformed texture and the reduc- tion in grain size are not important to deformative enhancement.How- ever,the reduction of grain size has,to a certain extent,an effect on the plastic toughness of the material. |
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| Keywords: | medium carbon steel high temperature deformation enhancement mechanism dislocation deformation |
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