| M42高速钢的热塑性和脆性特征 |
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| 引用本文： | 罗迪,邢国华.M42高速钢的热塑性和脆性特征[J].工具技术,1995,29(8):34-38. |
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| 作者姓名： | 罗迪 邢国华 |
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| 作者单位： | 冶金部钢铁研究总院 |
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| 摘 要： | 本文对铸态Ｍ４２高速钢的热塑性进行了研究，发现在１０７５℃～１１２５℃之间存在着高的热塑性峰值区域，断面收缩率超过７０％，延伸率超过４５％。指出，在对Ｍ４２钢进行热加工时，采取适当措施，可提高成材率。文章分析了Ｍ４２钢较脆的原因，提出改善其韧性和塑性的措施。
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| 关 键 词： | M42高速钢，热塑性，脆性 |
Study on Hot Plasticity and Brittleness of M42 High Speed Steel |
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| Luo Di et al.Study on Hot Plasticity and Brittleness of M42 High Speed Steel[J].Tool Engineering(The Magazine for Cutting & Measuring Engineering),1995,29(8):34-38. |
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| Authors: | Luo Di |
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| Affiliation: | Luo Di et al |
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| Abstract: | The hot plasticity and brittleness of M42 HSS have been studied in this paper. There is high hot plasticity peak between 1075- 1125℃ with ψ>70 % and σ<45%. This is suggested for the suitable temperature of forging. There are many micro cracks in M42 steel.They may be the source of fracture and response for the M42 brittleness. Another cause of M42brittleness may be twin martensite which have been found with a large amount in the temperng structure. |
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| Keywords: | M42 steel hot plasticity brittleness |
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