微合金高强度钢纳米级析出相的分析

特殊钢 ›› 2006, Vol. 27 ›› Issue (4): 19-21.

微合金高强度钢纳米级析出相的分析

吴华杰, 傅杰,刘阳春

北京科技大学冶金与生态工程学院，北京100083

收稿日期:2006-01-17 出版日期:2006-08-01 发布日期:2023-03-17
作者简介:吴华杰(1978-),男，博士研究生，钢铁冶金工艺和金属材料研究。
基金资助:
国家自然科学基金资助项目(50334010)

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

Wu Huajie, Fu Jie, Liu Yangchun

School of Metallurgical and Ecological Engineering, University of Science and Technology,Beijing 100083

Received:2006-01-17 Published:2006-08-01 Online:2023-03-17

摘要/Abstract

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+M₂₃C₆碳化物的质量分数为0.134 1％,同尺寸的MC为0．008 4％。

关键词: 微合金化钢,纳米级碳化物, 相分析

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 M₂C and M₂C₆ carbide in large amounts in microalloyed steels:the mass percent of M₃C + M₂C₆carbide 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 M₃C + M₂₃C₆carbide in diameter less than 36 nm in steel B2C was 0. 1341% while that of the MC in same diameter was 0.0084%.

Key words: , Microalloyed Steel,Nano-Scaled Carbide,Phase Analysis

吴华杰, 傅杰, 刘阳春. 微合金高强度钢纳米级析出相的分析[J]. 特殊钢, 2006, 27(4): 19-21.

Wu Huajie, Fu Jie , Liu Yangchun. An Analysis on Nano-Scaled Precipitates in Microalloyed High Strength Steels[J]. Special Steel, 2006, 27(4): 19-21.