摘要
采用透射电子显微分析（ＴＥＭ）和高分辨透射电子显微分析（ＨＲＥＭ）技术研究了低合金 Ｃｒ－Ｍｏ－Ｖ钢不同回火温度下ＶＣ沉淀相质点的精细结构及其与基体的界面关系．结果表明：较低温度回火时，ＶＣ沉淀相系以｛１００｝ａ为惯习面的纳米尺度的薄片，与基体存在 Ｂａｋｅｒ－Ｎｕｔｔｉｎｇ关系随着回火温度升高，片状相聚集成碳化物团或者发生球化，与基体丧失共格或部分共格。
The microstructure and the interface of VC particles precipitated from the matrix of the low alloy Cr-Mo-V steel tempered at various temperatures have been studied by TEM and HREM observations. The results show that the VC particles precipitated at lower temper temperatures are of disc-shap in nano-scale and of {100}. habit plane. There is a Baker-Nutting relationship at the interface of the VC precipitates and the matrix. With increasing the temper temperature, the discshaped Precipitates grow up; The coherency between VC particles and the matrix is partially lost, resulting in the decrease of elastic distortion energy along {100} plane of the matrix.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2000年第10期1009-1014,共6页
Acta Metallurgica Sinica
基金
中国博士后科研基金
