Effect of Al on Structure of As-cast High Speed Steel M2

周雪峰; 方峰; 蒋建清; 李德辉; 朱旺龙

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Effect of Al on Structure of As-cast High Speed Steel M2

更新时间：2026-01-21

- Effect of Al on Structure of As-cast High Speed Steel M2
- Special Steel Vol. 30, Issue 3, Pages: 52-54(2009)
- 作者机构：
  
  1. 东南大学江苏省先进金属材料高技术研究重点实验室,南京,211189
  2. 天工集团，丹阳,215400
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：13 November 2008，
  
  Online First：24 November 2022，
  
  Published：24 November 2009
- 稿件说明：
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周雪峰, 方峰, 蒋建清, et al. Effect of Al on Structure of As-cast High Speed Steel M2[J]. Special Steel, 2009, 30(3): 52-54.
DOI：

周雪峰, 方峰, 蒋建清, et al. Effect of Al on Structure of As-cast High Speed Steel M2[J]. Special Steel, 2009, 30(3): 52-54. DOI：

摘要

试验M2高速钢(%:0.85C、5.92W、4.74Mo、3.86Cr、1.81V)由25 kg真空感应炉熔炼

并用砂型铸造成锭。研究了0～1.3%Al对钢铸态组织的影响。结果表明

加入0.6%Al

可细化共晶莱氏体网

改善碳化物分布;加入过量Al(1.3%)

初生晶粒内部出现大量由δ铁素体通过共析转变产生的针状碳化物。Al促进M

C共晶碳化物形态由弯曲棒状变为平直片层状

并提高其合金元素含量。与片层状M

C相比

棒状M

C在高温易分解成短棒状或球状碳化物

有利改善碳化物形态。

Abstract

Test high speed steel M2 ( % : 0. 85C

5. 92W. 4. 74Mo

3. 86Cr

1. 84V) was melted by 25kg vacuum induction furnace and ingot was cast bv sand mould. The effect of 0 ~ 1. 3% Al on stiucture of as-cast steel has been studied. Results showed that added 0. 6% Al was available to fine the ledeburite network and improve the distribution of carbides in steel ； while added excessive amount of Al (1. 3% ) promoted the formation of a great lot of acicular carbide eutectoid-transformed from δ ferrite in primary grain. Al promoted the M

C carbide translbrnied from curved rod-like to straight lamella-like in which the alloy element content increased. Compared with lamellar M

the rod-like M

C easily decomposed short rod-like and granular carbides favorably to improve the morphology of carbide in steel.

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