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

被引：11
作者：
Deng, Guanyu [1 ]
Bhattacharjee, Tilak [1 ,2 ]
Chong, Yan [1 ]
Zheng, Ruixiao [1 ]
Bai, Yu [1 ,2 ]
Shibata, Akinobu [1 ,2 ]
Tsuji, Nobuhiro [1 ,2 ]
机构：
[1] Kyoto Univ, Dept Mat Sci & Engn, Kyoto, Japan
[2] Kyoto Univ, ESISM, Kyoto, Japan
来源：
7TH INTERNATIONAL CONFERENCE ON NANOMATERIALS BY SEVERE PLASTIC DEFORMATION | 2017年 / 194卷
基金：
日本学术振兴会;
关键词：
HIGH-PRESSURE TORSION; EVOLUTION; BEHAVIOR;
D O I：
10.1088/1757-899X/194/1/012020
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Titanium and Ti-alloys are widely used in the marine, aerospace, and biomedical industries due to their high strength to weight ratio, excellent corrosion resistance, and biocompatibility. Increasing the strength level of pure Ti via grain refinement without a considerable decrease in ductility is an attractive approach. Fabrication of nanostructured or ultrafine grained (UFG) metals using severe plastic deformation (SPD) techniques has attracted a lot of interest in the last two decades. The main purpose of the present study is to explore the influence of Fe addition in grain refinement in pure Ti. As-cast pure Ti with two different levels of Fe was firstly deformed by high pressure torsion (HPT) up to 10 rotations at room temperature, and then annealed in a vacuum at a temperature of 500 degrees C for half an hour. Detailed microstructures were characterized by transmission electron microscopy (TEM) and electron backscatter diffraction (EBSD), and mechanical property was examined by microhardness test.
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页数：6
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