Effect of RE La element on the mechanical properties of 5CrNiMo forging die steel

GUO Hongfei; HAO Xin; HE Zhihui

doi:10.13374/j.issn1001-053x.2007.12.035

Volume 29 Issue 12

Aug. 2021

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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

Citation:

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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Effect of RE La element on the mechanical properties of 5CrNiMo forging die steel

doi: 10.13374/j.issn1001-053x.2007.12.035

College of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China

Received Date: 2006-09-05
Rev Recd Date: 2006-10-15

Available Online: 2021-08-16

Abstract

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.
- rare-earth(RE),
- forging die steel,
- mechanical properties,
- fractography