TiNi Shape Memory Alloy Foams Synthesized by Spacer Sintering and their Properties
来源期刊：材料科学与工程学报2007年第6期
论文作者：P D Hodgson J Y Xiong Y C Li C E Wen
关键词：TiNi alloy; metallic foams; shape memory properties; spacer sintering;
摘 要：Titanium (Ti) andnickel (Ni) elemental powders were blended by ball milling and the ball milled powders were employed to fabricate TiNi shape memory alloy (SMA) foams by spacer sintering. Effect of ball milling time on phase constitutes of the sintered TiNi alloy foams was studied by X-ray diffraction (XRD) analysis. Scanning electron microscopy (SEM) was used to characterize the porous structure, and compressive tests were carried out to evaluate the mechanical properties ofthe foams. Results indicate that porosities of the TiNi alloy foams can be controlled by using the spacer sintering method, and the porosities show a significant effect on the mechanical properties and shape memory effect (SME).
P D Hodgson1，J Y Xiong1，Y C Li1，C E Wen1
(1.Centre for Material and Fibre Innovation, Deakin University, Geelong Victoria 3217, Australia)
摘要:Titanium (Ti) andnickel (Ni) elemental powders were blended by ball milling and the ball milled powders were employed to fabricate TiNi shape memory alloy (SMA) foams by spacer sintering. Effect of ball milling time on phase constitutes of the sintered TiNi alloy foams was studied by X-ray diffraction (XRD) analysis. Scanning electron microscopy (SEM) was used to characterize the porous structure, and compressive tests were carried out to evaluate the mechanical properties ofthe foams. Results indicate that porosities of the TiNi alloy foams can be controlled by using the spacer sintering method, and the porosities show a significant effect on the mechanical properties and shape memory effect (SME).
关键词:TiNi alloy; metallic foams; shape memory properties; spacer sintering;
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