| 60Si2Mn弹簧扁钢崩料断裂原因分析 |
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| 引用本文： | 万正东,彭文屹,杨湘杰,唐小军,陈明. 60Si2Mn弹簧扁钢崩料断裂原因分析[J]. 机械工程材料, 2009, 0(12) |
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| 作者姓名： | 万正东 彭文屹 杨湘杰 唐小军 陈明 |
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| 作者单位： | 南昌大学,机电工程学院,南昌,330031;南昌大学,材料科学与工程学院,南昌,330031;南昌长力钢铁股份有限公司,南昌,330012 |
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| 摘 要： | 60Si2Mn弹簧扁钢在下料过程中发生崩断现象,采用化学成分分析、显微组织分析、力学性能试验等方法对弹簧扁钢的断裂原因进行了分析。结果表明:弹簧扁钢崩料断裂性质为解理断裂;材料原始组织中存在超标的非金属夹杂物是导致弹簧扁钢发生崩断的主要原因,钢中的非金属夹杂物在外力作用下形成裂纹源,随后在下料过程中受力导致裂纹扩展而发生了崩料断裂。
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| 关 键 词： | 60Si2Mn弹簧扁钢 断裂 解理断裂 非金属夹杂物 |
Reason Analysis for Avalanche Fracture of 60Si2Mn Spring Flat Steel |
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| WAN Zheng-dong,PENG Wen-yi,YANG Xiang-jie,TANG Xiao-jun,CHEN Ming. Reason Analysis for Avalanche Fracture of 60Si2Mn Spring Flat Steel[J]. Materials For Mechanical Engineering, 2009, 0(12) |
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| Authors: | WAN Zheng-dong PENG Wen-yi YANG Xiang-jie TANG Xiao-jun CHEN Ming |
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| Affiliation: | WAN Zheng-dong~1,PENG Wen-yi~2,YANG Xiang-jie~1,TANG Xiao-jun~3,CHEN Ming~3 (1. School of Mechatronics Engineering,2. School of Materials Science & Engineering,Nanchang University,Nanchang 330031,China,3. Nanchang Changli Iron and Steel Co.,Ltd.,Nanchang 330012,China) |
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| Abstract: | During the cutting process,60Si2Mn spring flat steel had the avalanche problem.A study was conducted to investigate the 60Si2Mn spring flat steel fracture reason by means of chemical analysis,microstructure testing and mechanical properties testing,etc.The results show that the property of fracture was cleavage fracture. In the spring flat steel,there were a large number of non-metallic inclusions caused the avalanche problem.Under the external force,non-metallic inclusions were the source of cracks which r... |
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| Keywords: | 60Si2Mn spring flat steel fracture cleavage fracture non metallic inclusion |
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