| 激光快速熔凝Fe基、Ni基合金的细化形态 |
| |
| 引用本文： | 姜明,江晓平,黄建国,孙晓峰,葛云龙,胡壮麒. 激光快速熔凝Fe基、Ni基合金的细化形态[J]. 材料研究学报, 1989, 3(3): 199-204 |
| |
| 作者姓名： | 姜明 江晓平 黄建国 孙晓峰 葛云龙 胡壮麒 |
| |
| 作者单位： | 中国科学院金属研究所，中国科学院金属研究所，中国科学院金属研究所，中国科学院金属研究所，中国科学院金属研究所，中国科学院金属研究所 沈阳市 110015 |
| |
| 摘 要： | 采用脉冲激光对纯 Fe、纯 Ni、20钢和 Ni 基合金进行了快速熔凝处理。结果表明,在纯 Fe和纯 Ni 熔凝区内,生成了一种外延生长的晶粒组织;在20钢和 Ni 基合金熔凝区内,生成了外延生长晶粒和极细的枝晶组织。在金属与合金的熔区中均形成了精细的的亚晶粒。激光快速熔凝大大地细化了校晶和亚晶,却没有得到明显细化的晶粒。
|
| 关 键 词： | 激光熔凝 外延生长 枝晶细化 亚晶粒 非自发形核 温度梯度 |
| 收稿时间： | 1989-06-25 |
| 修稿时间： | 1989-06-25 |
A FINING MECHANISM OF THE LASER SOLIDIFIED MICROSTRUCTURE FOR Fe-AND Ni-BASE ALLOYS |
| |
| JIANG Ming JIANG Xiaoping HUANG Yianguo SUN Xiaofeng GE Yunlong HU Zhuangqi. A FINING MECHANISM OF THE LASER SOLIDIFIED MICROSTRUCTURE FOR Fe-AND Ni-BASE ALLOYS[J]. Chinese Journal of Materials Research, 1989, 3(3): 199-204 |
| |
| Authors: | JIANG Ming JIANG Xiaoping HUANG Yianguo SUN Xiaofeng GE Yunlong HU Zhuangqi |
| |
| Affiliation: | JIANG Ming JIANG Xiaoping HUANG Yianguo SUN Xiaofeng GE Yunlong HU Zhuangqi (Institute of Metal Research,Academia sinica) |
| |
| Abstract: | Laser rapid solidification treatment on pure Fe,20 steel andNi-base alloy is performed by means of pulse laser.The results show thatsome epitaxially growing grains are formed in the melted zones of pure Fe andNi.The epitaxially growing grains and fine dendritic microstructures are formedin the 20 steel and Ni-base alloy.Meanwhile,a large amount of fined sub--grains appear in the melted zones of the metals and the alloys.The epitaxiallygrowing grains in laser melted zones are not fined,but the dendritic micros-tructures and sub-grains are fined greatly. |
| |
| Keywords: | laserglaze epitaxial growth dendritic refine sub-grainL heterogeneously nucleated temperature gradient |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《材料研究学报》浏览原始摘要信息 |
|
点击此处可从《材料研究学报》下载全文 |
