Surface Characterization of Laser Surface Melted NiTi Shape Memory Alloy in Hanks' Solution
来源期刊：材料热处理学报2004年第5期
论文作者：MAN Hauchung YANG Xian-jin ZHU Sheng-li CUI Zhen-duo
关键词：Ion release rate; Shape memory alloys; Laser surface melting; Characterization; Biomaterials;
摘 要：The surface of Ti-50.8Ni at% shape memory alloy was melted by an Nd-YAG laser. The Ti/Ni and Ti4+/Ti atomic concentration ratios at the surface were changed significantly. The Ni ion release rate of the laser melted surface was much lower than that of the mechanical polished samples. A calcium-phosphorous layer with high Ca/P ratio was detected after immersion in Hanks' solution.
MAN Hauchung1，YANG Xian-jin2，ZHU Sheng-li2，CUI Zhen-duo2
(1.Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China;
2.School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China)
摘要:The surface of Ti-50.8Ni at% shape memory alloy was melted by an Nd-YAG laser. The Ti/Ni and Ti4+/Ti atomic concentration ratios at the surface were changed significantly. The Ni ion release rate of the laser melted surface was much lower than that of the mechanical polished samples. A calcium-phosphorous layer with high Ca/P ratio was detected after immersion in Hanks'' solution.
关键词:Ion release rate; Shape memory alloys; Laser surface melting; Characterization; Biomaterials;
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