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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.53  No.3 (2012)  >  pp.518-523

MATERIALS TRANSACTIONS
<<Previous article Vol.53  No.3 (2012)   pp.518 - 523 Next article>>

Pin-On-Disc Wear of Precipitation Hardened Titanium–Copper Alloys Fabricated by Powder Metallurgy

Tachai Luangvaranunt1) and Patchara Pripanapong1)
1) Department of Metallurgical Engineering, Faculty of Engineering, Chulalongkorn University

Titanium–2 mass%Cu and Ti–10 mass%Cu alloys were fabricated by powder metallurgy. The alloys were precipitation hardened to observe effect of heat treatment to their wear property. It was found that hardness of the two alloys increased after solution treatment to 320 and 526 HV, and after aging to 441 and 612 HV. However, wear resistance, as characterized by friction coefficient and mass loss in a pin-on-disc wear test deteriorated. In term of wear resistance, a lamellar morphology of eutectoid αTi/Ti2Cu was favorable to the homogenized morphology of heat treated alloys. Lowest specific wear rate was found in as-sintered Ti–10 mass%Cu, having a value of 1.16 × 10−13 m3/N·m.


Keyword:
titanium, copper, sintering, solution treatment, aging, precipitation, wear, pin-on-disc, abrasion

Received: September 20, 2011
Accepted: December 07, 2011 , Published online: February 25, 2012
Copyright (c) 2012 The Japan Institute of Metals

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