| 国内外Cr12型模具钢组织和性能对比 |
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| 引用本文： | 李晨辉,谢尘,吴晓春,汪宏斌.国内外Cr12型模具钢组织和性能对比[J].材料热处理学报,2012,33(Z1):47-50. |
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| 作者姓名： | 李晨辉 谢尘 吴晓春 汪宏斌 |
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| 作者单位： | 上海大学材料科学与工程学院,上海,200072 |
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| 基金项目： | 国家“十一五”科技支撑计划(2007BAE51B04);上海市重点学科建设项目(S30107) |
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| 摘 要： | 通过成分分析、冶金质量评定、显微组织观测、能谱分析及硬度、冲击、拉仲实验,对4种Cr12钢的组织与性能进行研究,包括DAIDO DC11、ASSAB XW41及两种国产Cr12钢.结果表明,与DC11、XW41相比,国产Cr12型模具钢力学性能较差,主要原因在于共晶碳化物不均匀度级别较高,形态较差；非金属夹杂含量较高.其次,碳含量偏高,碳化物形成元素偏低.
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| 关 键 词： | Cr12型模具钢 共晶碳化物 微观组织 力学性能 |
Comparison of microstructure and properties between domestic and abroad Cr12 die steels |
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| LI Chen-hui,XIE Chen,WU Xiao-chun,WANG Hong-bin.Comparison of microstructure and properties between domestic and abroad Cr12 die steels[J].Transactions of Materials and Heat Treatment,2012,33(Z1):47-50. |
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| Authors: | LI Chen-hui XIE Chen WU Xiao-chun WANG Hong-bin |
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| Affiliation: | (School of Materials Science and Engineering,Shanghai University,Shanghai 200072,China) |
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| Abstract: | Microstructure and mechanical properties of four kinds of Cr12 die steels which were two abroad DAIDO DC11 and ASSAB XW41 steels and two domestic Cr12 die steels were studied by means of metallurgical quality analysis,chemical compositions analysis,microstructure observed,energy dispersive spectrometer analysis,and hardness,impact,tensile test.The results show that domestic Cr12 steels have bad mechanical property.The main reason is the worse morphology and asymmetry grade of eutectic carbides,and higher content of nonmetallic inclusions.Secondly,carbon content is on the high side and carbide-forming elements are on the low side. |
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| Keywords: | Cr12 die steel eutectic carbides microstructure mechanical property |
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