Powder injection molding of pure titanium

稀有金属（英文版）, 2009, 28(3): 261-265. doi: 10.1007/s 12598-009-0052-0

^1, , ^2, , ^3, , ^4,

1.Advanced Materials Synthesis and Applied Technology Laboratory, College of Electronmechanical Engineering, Hunan University of Science and Engineering, Xiangtan 411201, China;School of Materials Science and Engineering, University of Science and Technolog

2.School of Materials Science and Engineering, University of Science and Technology of Beijing, Beijing 100083, China

3.School of Materials Science and Engineering, University of Science and Technology of Beijing, Beijing 100083, China

4.School of Materials Science and Engineering, University of Science and Technology of Beijing, Beijing 100083, China

Powder injection molding of pure titanium

GUO Shibo ^1, , DUAN Bohua ^2, , HE Xinbo ^3, , QU Xuanhui ^4,

1.Advanced Materials Synthesis and Applied Technology Laboratory, College of Electronmechanical Engineering, Hunan University of Science and Engineering, Xiangtan 411201, China;School of Materials Science and Engineering, University of Science and Technolog

2.School of Materials Science and Engineering, University of Science and Technology of Beijing, Beijing 100083, China

3.School of Materials Science and Engineering, University of Science and Technology of Beijing, Beijing 100083, China

4.School of Materials Science and Engineering, University of Science and Technology of Beijing, Beijing 100083, China

Keywords： powder injection molding

An improved wax-based binder was developed for powder injection molding of pure titanium. A critical powder loading of 69 vol.% and a pseudo-plastic flow behavior were obtained by the feedstock based on the binder. The injection molding, debinding, and sintering process were studied. An ideal control of carbon and oxygen contents was achieved by thermal debinding in vacuum atmosphere (10-3 Pa). The mechanical properties of as-sintered specimens were less than those of titanium made by the conventional press-sintering process. Good shape retention and ±0.04 mm dimension deviation were achieved.

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