Characterization of microstructure and mechanical property of pure titanium with different Fe addition processed by severe plastic deformation and subsequent annealing

作者: Guanyu Deng , Tilak Bhattacharjee , Yan Chong , Ruixiao Zheng , Yu Bai

DOI: 10.1088/1757-899X/194/1/012020

关键词: Indentation hardnessMicrostructureTitaniumSevere plastic deformationSpecific strengthMetallurgyAnnealing (metallurgy)Electron backscatter diffractionCorrosionMaterials science

摘要: Titanium and Ti-alloys are widely used in the marine, aerospace, biomedical industries due to their high strength weight ratio, excellent corrosion resistance, biocompatibility. Increasing level of pure Ti via grain refinement without a considerable decrease ductility is an attractive approach. Fabrication nanostructured or ultrafine grained (UFG) metals using severe plastic deformation (SPD) techniques has attracted lot interest last two decades. The main purpose present study explore influence Fe addition Ti. As-cast with different levels was firstly deformed by pressure torsion (HPT) up 10 rotations at room temperature, then annealed vacuum temperature 500 °C for half hour. Detailed microstructures were characterized transmission electron microscopy (TEM) backscatter diffraction (EBSD), mechanical property examined microhardness test.

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