| 注射成形Fe-2Ni合金的机械性能和微观组织 |
| |
| 引用本文： | 李益民,曲选辉,邱光汉,曾舟山,林好转,黄伯云.注射成形Fe-2Ni合金的机械性能和微观组织[J].中南大学学报(自然科学版),1997(3). |
| |
| 作者姓名： | 李益民 曲选辉 邱光汉 曾舟山 林好转 黄伯云 |
| |
| 摘 要： | 采用金属粉末注射成形方法制备了Fe－2Ni合金试样，制得的试样强度、硬度指标达到了MIM协会标准的典型值，而密度、延伸率还有一定的差异．分析了烧结温度、粉末装载量、化学组成和烧结气氛对试样机械性能和微观组织的影响．
|
| 关 键 词： | 注射成形 机械性能 微观组织 |
THE MECHANICAL PROPERTIES AND MICROSTRUCTURE OF Fe-2Ni ALLOY MADE BY INJECTION MOLDING |
| |
| Li Yimin,Qu Xuanhui,Qiu Guanghan,Zheng Zhoushan,Lin Haozhuang,Huang Baiyun.THE MECHANICAL PROPERTIES AND MICROSTRUCTURE OF Fe-2Ni ALLOY MADE BY INJECTION MOLDING[J].Journal of Central South University:Science and Technology,1997(3). |
| |
| Authors: | Li Yimin Qu Xuanhui Qiu Guanghan Zheng Zhoushan Lin Haozhuang Huang Baiyun |
| |
| Abstract: | The samples of Fe-2Ni alloy were prepared by metal injection molding using paraffin wax--based binder. The strength and hardness of samples achieved the typical values of MIM Association standard, while there is still. a little latitude for density and elongation. The influence of sintering temperature, powder loading, chemical composition and sintering atomosphere on the mechanical properties and microstructure of samples was analysed. With the increase of sintering temperature, the density, strength and hardness exhibited an obvious increase whereas the elongation showed little decrease.Low powder loading resulted in incomplete densification which made it difficult to increase the mechanical properties of products. The products contained nearly no carbon due to taking pure hydrogen as atomosphere during thermal debinding and sintering. That was also a factor for lower density and mechanical properties. |
| |
| Keywords: | injection molding mechanical properties microstructure |
|
|
