| 低合金Cr-Mo-V钢中VC沉淀相的精细结构 |
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| 引用本文： | 孙树文,茅建富,雷廷权,贺连龙. 低合金Cr-Mo-V钢中VC沉淀相的精细结构[J]. 金属学报, 2000, 36(10): 1009-1014 |
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| 作者姓名： | 孙树文 茅建富 雷廷权 贺连龙 |
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| 作者单位： | 1. 哈尔滨工业大学材料科学与工程学院,哈尔滨,150001
2. 中国科学院金属研究所固体原子像开放实验室,沈阳,110015 |
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| 基金项目： | 中国博士后科研基金资助项目 |
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| 摘 要： | 采用透镜电子显微分析（ＴＥＭ）的高分辨透射电子显微分析（ＨＲＥＭ）技术研究了低合金Ｃｒ－Ｍｏ－Ｖ铜不同回火温度下ＶＣ深淀相质点和精细结构及其与基体和界面关系，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，与基化丧失共格或部分共格，。
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| 关 键 词： | 低合金Cr－Mo－V钢 VC沉淀相 精细结构 显微分析 |
| 文章编号： | 0412-1961(2000)10-1009-06 |
| 修稿时间： | 2000-03-20 |
MICROSTRUCTURAL CHARACTERIZATION OF VC PRECIPITATES IN A LOW ALLOY Cr-Mo-V STEEL |
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| SUN Shuwen,MAO Jianfu,LEI Tingquan,HE Lianlong. MICROSTRUCTURAL CHARACTERIZATION OF VC PRECIPITATES IN A LOW ALLOY Cr-Mo-V STEEL[J]. Acta Metallurgica Sinica, 2000, 36(10): 1009-1014 |
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| Authors: | SUN Shuwen MAO Jianfu LEI Tingquan HE Lianlong |
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| Abstract: | 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. |
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| Keywords: | low alloy Cr-Mo-V steel precipitation carbide fine structure |
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