Please use this identifier to cite or link to this item: http://cmuir.cmu.ac.th/jspui/handle/6653943832/61745
Title: Formation of titanium nitride on γ-TiAl alloys by direct metal-gas reaction
Authors: Kittichai Sopunna
Titipun Thongtem
Michael McNallan
Somchai Thongtem
Keywords: Materials Science
Physics and Astronomy
Issue Date: 1-Jul-2006
Abstract: Two alloys, Ti-47Al-2Nb-2Cr (MJ12) and Ti-47Al-2Nb-2Mn + 0.8TiB2(MJ47), were nitrided in purified ammonia for 3.6 × 103-3.6 × 104s (1-10 h) at a temperature range of 800-1,000 °C. The nitridation process can successfully improve alloy hardness which increased with an increase of the nitridation temperature and time. Hardness values of MJ12 and MJ47 with 1,000 °C nitridation for 3.6 × 104s were the highest at 700.5 ± 9.0 and 694.7 ± 21.8 kg mm-2, respectively. The wear rate and friction coefficient were significantly reduced by the nitridation process. Wear resistance of both alloys increased by two orders of magnitude after nitridation compared to the corresponding alloys without nitridation. In addition, the alloys were analyzed using XRD, SEM, EDX and an optical microscope.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33747088193&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/61745
ISSN: 15734803
00222461
Appears in Collections:CMUL: Journal Articles

Files in This Item:
There are no files associated with this item.


Items in CMUIR are protected by copyright, with all rights reserved, unless otherwise indicated.