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In-situ formed graded microporous structure in titanium alloys and its effect on the mechanical properties
Affiliation:1. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;2. State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;1. Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Universidade Federal de São Carlos, Rod. Washington Luiz, km 235, 13565-905 São Carlos, SP, Brazil;2. Centro de Pesquisa & Desenvolvimento Leopoldo Américo Miguêz de Mello (Cenpes), Avenida Horácio Macedo, 950, 21941-915 Rio de Janeiro, RJ, Brazil;3. Univ. Grenoble Alpes, LEPMI, F-38000 Grenoble, France;4. CNRS, LEPMI, F-38000 Grenoble, France;5. Departamento de Engenharia de Materiais, Universidade Federal de São Carlos, Rod. Washington Luiz, km 235, 13565-905 São Carlos, SP, Brazil;1. Structural Integrity Group, Escuela Politécnica Superior, Avenida Cantabria s/n, 09006 Burgos, Spain;2. Civil Engineering Department, University of Burgos, Calle Villadiego s/n, 09001 Burgos, Spain;1. School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, PR China;2. School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore;3. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, PR China
Abstract:A simple method to fabricate porous titanium was developed, with which the graded microporous titanium alloys could be prepared by simply casting. The in-situ formed graded microporous structure and its effect on the mechanical properties of the titanium alloys were investigated. The results indicated that the mechanical properties of such graded microporous titanium alloys were superior to the porous titanium fabricated by other methods. This work provides a bright prospect for the production of graded porous titanium alloys with low-cost and high properties. This method can also be applied to synthesize other porous metallic biomaterials.
Keywords:Porous titanium  Graded porous titanium  Solidification  Biomaterials  Porosity
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