低压烧结制备多孔NiTi形状记忆合金的结构及性能
Stucture and Properties of Porous NiTi Shape Memory Alloys Fabricated by Low Pressure Sintering
摘 要
采用低压烧结法制备了多孔NiTi形状记忆合金;研究了在1 050 ℃下烧结不同时间所制备合金的结构及性能,并与常规粉末烧结方法制备的合金进行了比较.结果表明:低压烧结法在短时间内制备合金的孔隙可控性好,孔径主要分布在50～200 μｍ之间,孔隙相互连通,呈网状分布,无明显各向异性;同时表现出良好的力学性能和超弹性能.
低压烧结
超弹性
孔隙
NiTi shape memory alloy
low pressure sintering
superelasticity
pore
Abstract
Porous NiTi shape memory alloys(SMAs) were successfully prepared by low pressure sintering(LPS).The structure and properties of the porous NiTi SMAs sintered for different times were studied and compared with those of samples fabricated by vacuum sintering.The resucts show that the porous NiTi SMAs produced by LPS with three-dimensionally interconnected pores had the isotropic pore structure,whose pore size was about 50～200 μｍ.The porous NiTi SMAs produced by LPS also exhibited good mechanical properties,such as superior superelasticity and a higher compressive strength.
中图分类号 TG113 TG139
所属栏目 材料性能及其应用
基金项目 国家自然科学基金资助项目(50701019);广东省自然科学基金资助项目(2005团队项目);中国博士后科学基金资助项目(20060390199)
收稿日期 2007/10/31
修改稿日期 2008/6/20
网络出版日期
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备注李浩(1979-),男,河南西华人,博士研究生.
引用该论文: LI Hao,YUAN Bin,GAO Yan,ZHONG Zhi-yuan,ZHU Min. Stucture and Properties of Porous NiTi Shape Memory Alloys Fabricated by Low Pressure Sintering[J]. Materials for mechancial engineering, 2008, 32(11): 53～56
李浩,袁斌,高岩,钟志源,朱敏. 低压烧结制备多孔NiTi形状记忆合金的结构及性能[J]. 机械工程材料, 2008, 32(11): 53～56
被引情况:
【1】李浩,高岩,袁斌,钟志源, "超弹性多孔β相Ti16Nb4Sn合金的制备及其性能",机械工程材料 34, 41-44(2010)
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参考文献
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【2】Li B Y,Rong L J,Li Y Y,et al.Fabrication of cellular NiTi inter metallic compounds[J].J Mater Res,2000,15(1):10-13.
【3】Yuan B,Chung C Y,Zhang X P,et al.Control of porosity and superelasticity of porous NiTi shape memory alloys prepared by hot isostatic pressing[J].Smart Mater Struct,2005,14:201-206.
【4】Yuan B,Chung C Y,Zhu M.Microstructure and martensitic transformation behavior of porous NiTi shape memory alloy prepared by hot isostatic pressing processing[J].Materials Science and Engineering A,2004,382:1881-1887.
【5】Takata A,Ishizaki K,Kondo Y,et al.Materilas research Society Symposium[C]//Gibson L J,Green D,Sieradzki K.Proceedings Vol.207:mechanical Properties of Porous and Cellular materials.PA:Materials Research Society,1991:135-140.
【6】Zhang N,Babayang Khosrovabadi P,Lindenhovius J H,et al.TiNi shape memory alloys prepared by normal sintering[J].Materials Science and Engineering,1992,A150:263-270.
【7】松山芳治,三谷裕康,铃木寿.粉末冶金学[M].周安生,高一平,王 颖,等译.北京:科学出版社,1978.
【8】Sevilla P,Aparicio C,Planell J A.Comparison of the mechanical properties between tantalum and nickel-titanium foams implant materials for bone ingrowth applications[J].Journal of Alloys and Compounds,2007,439(1/2):67-73.
【9】冯元桢.生物力学[M].北京:科学出版社,1983:240-250.
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