| 稀土La对5CrNiMo模具钢力学性能的影响 |
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| 引用本文： | 郭洪飞, 郝新, 何智慧. 稀土La对5CrNiMo模具钢力学性能的影响[J]. 工程科学学报, 2007, 29(12): 1209-1211. DOI: 10.13374/j.issn1001-053x.2007.12.035 |
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| 作者姓名： | 郭洪飞 郝新 何智慧 |
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| 作者单位： | 内蒙古工业大学材料科学与工程学院,呼和浩特,010051;内蒙古工业大学材料科学与工程学院,呼和浩特,010051;内蒙古工业大学材料科学与工程学院,呼和浩特,010051 |
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| 摘 要： | 研究了加入稀土La后5CrNiMo钢的强度、硬度、冲击韧性变化;并在相同热处理工艺条件下,与不添加稀土La的5CrNiMo钢进行对比.结果表明:稀土La加入量在适当的范围内可显著提高钢的强度、硬度和冲击韧性;当稀土La质量分数为0.033%时,5CrNiMo钢可获得最好的综合力学性能.
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| 关 键 词： | 模具钢 稀土 力学性能 断口形貌 |
| 收稿时间： | 2006-09-05 |
| 修稿时间： | 2006-10-15 |
Effect of RE La element on the mechanical properties of 5CrNiMo forging die steel |
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| GUO Hongfei, HAO Xin, HE Zhihui. Effect of RE La element on the mechanical properties of 5CrNiMo forging die steel[J]. Chinese Journal of Engineering, 2007, 29(12): 1209-1211. DOI: 10.13374/j.issn1001-053x.2007.12.035 |
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| Authors: | GUO Hongfei HAO Xin HE Zhihui |
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| Abstract: | The changes in strength, hardness and impact ductility of 5CrNiMo steel added different contents of RE La element were investigated. The 5CrNiMo steels with and without RE addition were compared after treated by the same heat treatment process. The result shows that the strength, hardness and impact ductility of 5CrNiMo steel are obviously improved when added a proper content of RE La element; the 5CrNiMo steel with RE La element of 0.033% in mass fraction has the best mechanical properties. |
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| Keywords: | rare-earth(RE) forging die steel mechanical properties fractography |
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