Injection molding of micro-porous titanium alloy with space holder technique

被引：22

作者：

Engin, Gulsah ^{[2
]}

Aydemir, Bulent ^{[3
]}

Gulsoy, H. Ozkan ^{[1
,4
]}

机构：

[1] Marmara Univ, Tech Educ Fac, Dept Mat, TR-34722 Goztepe, Turkey

[2] Marmara Univ, Inst Grad Studies Pure & Appl Sci, TR-34722 Goztepe, Turkey

[3] Natl Metrol Inst, TUBITAK, TR-41470 Gebze, Turkey

[4] Mat Technol Res Inst, Tubitak MRC, TR-41470 Gebze, Turkey

来源：

RARE METALS | 2011年 / 30卷 / 06期

关键词：

powder injection molding; titanium powder; porous metal; sintering; MECHANICAL-PROPERTIES; POWDER;

D O I：

10.1007/s12598-011-0430-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The powder space holder (PSH) and powder injection molding (PIM) methods have an industrial competitive advantage because they are capable of the net-shape production of micro-sized porous parts. In this study, micro-porous Ti6Al4V alloy (Ti64) parts were produced by the PSH-PIM process. Ti64 alloy powder and spherical polymethylmethacrylate (PMMA) particles were used as a space holder material. After molding, binder debinding was performed by thermal method under inert gas. Debinded samples were sintered at 1250A degrees C for 60 min in a vacuum (10(-4) Pa). Metallographic studies were conducted to determine densification and the corresponding microstructural changes. The surface of sintered samples was examined by SEM. The compressive stress and elastic modulus of the micro-porous Ti64 samples were determined. The effects of fraction of PMMA on the properties of sintered micro-porous Ti64 alloy samples were investigated. It was shown that the fraction of PMMA could be controlled to affect the properties of the Ti alloy.

引用

页码：565 / 571

页数：7

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