| 软钢及转变态材料中的解理断裂 |
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| 引用本文： | 杨瑞成,宫田隆司,大堟昭夫.软钢及转变态材料中的解理断裂[J].兰州理工大学学报,1989(1). |
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| 作者姓名： | 杨瑞成 宫田隆司 大堟昭夫 |
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| 作者单位： | 甘肃工业大学机械工程一系
(杨瑞成)，日本名古屋大学
(宫田隆司)，日本名古屋大学(大堟昭夫) |
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| 摘 要： | 本文通过力学性能试验、微观观察和理论分析,揭示了碳化物开裂机制也在细晶粒铁素体材料的解理断裂过程中起作用,在上贝氏体钢中,解理断裂的破面单元尺寸是板条束尺寸的3～4倍;还发现在零下196℃下解理断裂应力与屈服应力之间存在良好的线性关系。
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| 关 键 词： | 解理断裂 解理断裂应力 软钢 条状组织 板条束 破面单元 原始奥氏体晶粒 |
The Cleavage Fracture in Mild Steels and As-Transformed Materials |
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| Yang Ruicheng.The Cleavage Fracture in Mild Steels and As-Transformed Materials[J].Journal of Lanzhou University of Technology,1989(1). |
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| Authors: | Yang Ruicheng |
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| Abstract: | It is revealed in this paper that carbide-cracking mechanism also operates in the cleavage fracture of fine ferrite materials. In upper bainitic steels, the cleavage facet size of cleavage fracture is 3 to 4 times of the size of packet, and it seems that the packet size is not the only governing factor. The present work shows that there is a linear correlation between the cleavage fracture stress and the yield stress in the above mentioned materials at low temperature of -196C. |
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| Keywords: | cleavage fracture cleavage fracture stress mild steel lath microstructures packet size facet size prior austenite grain |
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