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http://dx.doi.org/10.3740/MRSK.2002.12.5.341

Improvement of Microstructural and Mechanical Properties of Ti-6Al-4V Alloy by Plasma Carburization  

Park, Yong-Gwon (Dept. of Materials Engineering, Chungbuk National University)
Kim, Taek-Su (Hanwha R/D Center, Sinsungdong)
Ji, Tae-Gu (School of Materials Sciende & Engineering Hongik University)
Wey, Myeong-Yong (Dept. of Materials Engineering, Chungbuk National University)
Publication Information
Korean Journal of Materials Research / v.12, no.5, 2002 , pp. 341-346 More about this Journal
Abstract
In order to improve the low wear resistance of Ti-6Al-4V alloy, plasma carburization treatment was newly carried out without consumption of its good specific strength and fatigue life over the temperature. Effect of the plasma carburization was analyzed and compared with the non-treated alloy by microstructural observation, structure characterization and mechanical property test. The plasma treated alloy formed a carburized layer of about 150$\mu\textrm{m}$ in depth from the surface, where a fine and hard particles of TiC and $V_4C_3$ were homogeneously dispersed through the layer. It was also found that an increase of the wear resistance, fatigue life and hardness, due to the hard and fine dispersoids.
Keywords
Ti-6Al-4V alloy; Plasma-carburizing; carburized layer; hardness; wear;
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