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| 40Cr钢表面纳米化的研究 | |
| 引用本文： | 赵新奇,熊天英,徐政,宋洪伟. 40Cr钢表面纳米化的研究[J]. 同济大学学报(自然科学版), 2004, 32(2): 218-221 |
| 作者姓名： | 赵新奇 熊天英 徐政 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,辽宁,沈阳,110016 3. 同济大学,材料科学与工程学院,上海,200092 4. 宝山钢铁股份有限公司技术中心,上海,201900 |
| 摘 要： | 采用高能表面处理技术在40Cr钢表面制备出具有纳米晶体结构特征的表面层.利用扫描电子显微镜和透射电子显微镜分析研究了表面纳米层的组织结构.结果表明,高能表面处理后40Cr钢表面形成纳米层的过程中,渗碳体先于铁素体纳米化. |
| 关 键 词： | 微观结构 40Cr钢 高能表面处理 表面纳米化 |
| 文章编号： | 0253-374X(2004)02-0218-04 |
Nanocrystallization of Cementite Prior to That of Ferrite in 40Cr Steel in Surface Nanocrystallization Processing |
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| ZHAO Xin-qi,XIONG Tian-ying,XU Zheng,SONG Hang-wei. Nanocrystallization of Cementite Prior to That of Ferrite in 40Cr Steel in Surface Nanocrystallization Processing[J]. Journal of Tongji University(Natural Science), 2004, 32(2): 218-221 | |
| Authors: | ZHAO Xin-qi XIONG Tian-ying XU Zheng SONG Hang-wei |
| Abstract: | A nanostructured surface layer was obtained in 40Cr steel by using a high-power surface pro-cessing(HPSP) technique. The microstructures of the nanocrystalline layer were characterized by scanning electron microscopy(SEM)and transmission electron microscopy (TEM).The experimental evidences reveal that the formation of nanocrystalline cementite is prior to that of nano-sized single-phase ferrite during the generation of a nanocrystalline surface layer. |
| Keywords: | microstructure 40Cr steel high-power surface processing surface nanocrystallization |
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