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| 表面纳米晶化处理中碳钢的组织与力学性能 | |
| 引用本文： | 赵新奇,刘志文,张俊宝,吴杰,徐政,熊天英,宋洪伟.表面纳米晶化处理中碳钢的组织与力学性能[J].钢铁研究学报,2006,18(1):44-49. |
| 作者姓名： | 赵新奇 刘志文 张俊宝 吴杰 徐政 熊天英 宋洪伟 |
| 作者单位： | 1. 同济大学材料科学与工程学院,上海,200092;宝山钢铁股份有限公司技术中心,上海,201900 2. 中国科学院金属研究所材料表面工程研究部,辽宁,沈阳,110016 3. 宝山钢铁股份有限公司技术中心,上海,201900 4. 同济大学材料科学与工程学院,上海,200092 |
| 摘 要： | 采用高能表面处理技术在40Cr钢的表面制备出具有纳米晶体特征的表面层.用扫描电子显微镜和透射电子显微镜研究了表面纳米层的微观结构,并利用纳米压入法测定了表面纳米层的硬度.结果表明,经过高能表面处理后,样品表面层的晶粒细化为纳米晶,平均晶粒尺寸约为11 nm,表面纳米层的硬度明显提高. |
| 关 键 词： | 中碳钢 表面纳米晶化 高能表面处理 组织 力学性能 |
| 文章编号： | 1001-0963(2006)01-0044-06 |
| 收稿时间： | 07 18 2003 12:00AM |
Microstructure and Mechanical Properties of Medium Carbon Steel Treated by Surface Nanocrystallization |
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| ZHAO Xin-qi,LIU Zhi-wen,ZHANG Jun-bao,WU Jie,XU Zheng,XIONG Tian-ying,SONG Hong-wei.Microstructure and Mechanical Properties of Medium Carbon Steel Treated by Surface Nanocrystallization[J].Journal of Iron and Steel Research,2006,18(1):44-49. | |
| Authors: | ZHAO Xin-qi LIU Zhi-wen ZHANG Jun-bao WU Jie XU Zheng XIONG Tian-ying SONG Hong-wei |
| Affiliation: | 1. School of Materials Science and Engineering, Tongji University, Shanghai 200092, China; 2. Surface Engineering of Materials Division, Institute of Metal Research, CAS, Shenyang 110016, Liaoning China; 3. Baosteel Technology Center, Baoshan Iron and Steel Co Ltd, Shanghai 201900, China |
| Abstract: | A surface layer of nanostructure was formed for 40Cr steel by using high-power surface processing(HPSP) technique.The surface nanocrystalline microstructure was studied by means of SEM and TEM.Hardness of the surface nanocrystalline layer was determined by nanoindentation.Experimental evidences showed that after the HPSP treatment,the size of all grains is in the nm-size range(<100 nm) with an average grain size of about 11 nm in the surface layer.The hardness of the surface nanocrystallized layer is enhanced significantly after HPSP treatment. |
| Keywords: | medium carbon steel surface nanocrystallization high power surface processing microstructure mechanical property |
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