| WC/钢基复合材料奥氏体化后的硬化效应及微观机理 |
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| 引用本文： | 杨瑞成,师瑞霞,王晖,王军民.WC/钢基复合材料奥氏体化后的硬化效应及微观机理[J].复合材料学报,2002,19(2):41-44. |
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| 作者姓名： | 杨瑞成 师瑞霞 王晖 王军民 |
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| 作者单位： | 1. 甘肃工业大学,材料科学与工程学院,兰州,730050
2. 国家电力公司西安热工研究院,西安,710032 |
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| 基金项目： | 甘肃省自然科学基金资助项目 (ZR-96-0 61) |
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| 摘 要： | 研究了碳化钨(WC)增强钢基复合材料经980℃~1240℃范围高温奥氏体化后的淬火硬化效应,发现此材料具有显著的淬火硬化效果(68HRC)及良好的抗回火稳定性。研究了材料组织中大块硬质相,WC聚集区及基体显微硬度(HV0.05)的变化以及与宏观洛氏硬度之间的关系。最后,从材料科学及合金电子论角度得出了复合材料的超高硬度是来自W,Mo等含碳结构单元构成的强大马氏体基体及大体积比例分布的硬质相的贡献。
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| 关 键 词： | WC/钢基复合材料 硬质相 钢基体 奥氏体化 硬化 |
| 文章编号： | 1000-3851(2002)02-0041-04 |
| 收稿时间： | 2000-06-15 |
| 修稿时间： | 2000年6月15日 |
HARDENING EFFECTS AND MICRO-MECHANISMS OF WC/STEEL MATRIX COMPOSITES AFTER AUSTENIZATION |
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| YANG Rui-cheng,SHI Rui-xia,WANG Hui,WANG Jun-min.HARDENING EFFECTS AND MICRO-MECHANISMS OF WC/STEEL MATRIX COMPOSITES AFTER AUSTENIZATION[J].Acta Materiae Compositae Sinica,2002,19(2):41-44. |
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| Authors: | YANG Rui-cheng SHI Rui-xia WANG Hui WANG Jun-min |
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| Affiliation: | 1. College of Material Science and Engineering, Gansu University of Technology, Lanzhou 730050,China;
2. Xi'an Thermal Power Research Institute of State Power Corporation, Xi'an 710032, China |
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| Abstract: | The hardening properties of carbide (WC)-reinforced steel matrix composites after austenization between 980℃~1240℃ have been investigated. It has been found that the tested material has a remarkable hardening effect, 68HRC, and tempering resistance.The present work has measured the micro-hardness (HV0.05) of the massive hard phase, WC aggregated and matrix in the material microstructures and studied the relationship between the micro-hardness (HV0.05) and macro-hardness(HRC). From materialogy and alloy electron theory, the highly hardening effect comes from the contributions of the strong martensite matrix containing carbon structure units with W, Mo, etc and numerous hard phases. |
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| Keywords: | WC/steel matrix composite hard phase steel matrix austenization hardening |
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