An Analysis on Nano-Scaled Precipitates in Microalloyed High Strength Steels

吴华杰; 傅杰; 刘阳春

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An Analysis on Nano-Scaled Precipitates in Microalloyed High Strength Steels

更新时间：2026-01-21

- An Analysis on Nano-Scaled Precipitates in Microalloyed High Strength Steels
- Special Steel Vol. 27, Issue 4, Pages: 19-21(2006)
- 作者机构：
  
  北京科技大学冶金与生态工程学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：17 January 2006，
  
  Online First：17 March 2023，
  
  Published：17 March 2006
- 稿件说明：
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吴华杰, 傅杰, 刘阳春. An Analysis on Nano-Scaled Precipitates in Microalloyed High Strength Steels[J]. Special Steel, 2006, 27(4): 19-21.
DOI：

吴华杰, 傅杰, 刘阳春. An Analysis on Nano-Scaled Precipitates in Microalloyed High Strength Steels[J]. Special Steel, 2006, 27(4): 19-21. DOI：

摘要

用化学相分析加X-射线小角散射法对微合金高强度钢70A(％:0．05C

1．90Mn

0．01V

0．13Ti

0．06Nb)和B2C(％:0．06C

2．34Mn

0．03V

0．03Ti

0．04Nb

0．0067B)的析出相结构、质量分数和粒度分布进行了研究。结果发现

微合金化钢亦存在大量纳米级M3C和M23C6碳化物

70A钢中

36 nm的M3C+M23C6碳化物质量分数为0．0664％

同尺寸的MC碳化物为0．0371％;B2C钢中

36 nm的M3C+M

碳化物的质量分数为0.134 1％

同尺寸的MC为0．008 4％。

Abstract

The precipitated phase composition

mass percent and particle size distribution in microalloyed high strength steels 70A(0.05C

1.90Mn

0.01V

0. 13Ti

0.06Nb) and B2C (0.06C

2.34Mn

0.03V

0.03Ti

0.04Nb

0.0067 B) have been studied by chemical phase analysis and small-angle X- ray scattering method. It was found that there were nano-scale M

C and M

carbide in large amounts in microalloyed steels:the mass percent of M

C + M

carbide in diameter less than 36 nm in steel 70A was 0.0664% and the mass percent of MC carbide in same diameter was 0.0371%; and that of M

C + M

carbide in diameter less than 36 nm in steel B2C was 0. 1341% while that of the MC in same diameter was 0.0084%.

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