Surface modification of the Ti-Al alloys at 1000-1200 K
Alloys of Ti-40wt.%Al, Ti-43wt.%Al, Ti-48wt.%Al, Ti-47wt. %Al-2wt.%Nb-2wt.%Cr and Ti-47wt.%Al-2wt.%Nb-2wt.%Mn-0.8wt.%TiB2 were nitrided in ammonia at atmospheric pressure and at 1000-1200 K for 3.6×105 s. The hardness and thickness of the nitride layers on the alloys were measured. It was found that...
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2014
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th-cmuir.6653943832-48112014-08-30T02:55:48Z Surface modification of the Ti-Al alloys at 1000-1200 K Thongtem S. Thongtem T. McNallan M. Alloys of Ti-40wt.%Al, Ti-43wt.%Al, Ti-48wt.%Al, Ti-47wt. %Al-2wt.%Nb-2wt.%Cr and Ti-47wt.%Al-2wt.%Nb-2wt.%Mn-0.8wt.%TiB2 were nitrided in ammonia at atmospheric pressure and at 1000-1200 K for 3.6×105 s. The hardness and thickness of the nitride layers on the alloys were measured. It was found that the hardness values increased with increasing nitridation temperature and aluminum concentration in the alloys. The depth of nitridation and the mass gain of the nitrided specimens could be represented by an Arrhenius-type equation and the activation energies were calculated. The x-ray diffraction results were explained and are in agreement with the improvement of the hardness. Copyright © 2001 John Wiley & Sons, Ltd. 2014-08-30T02:55:48Z 2014-08-30T02:55:48Z 2001 Conference Paper 01422421 10.1002/sia.1040 58486 SIAND http://www.scopus.com/inward/record.url?eid=2-s2.0-0035420430&partnerID=40&md5=cfc3d3372304ad9547351e0edd861934 http://cmuir.cmu.ac.th/handle/6653943832/4811 English |
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Alloys of Ti-40wt.%Al, Ti-43wt.%Al, Ti-48wt.%Al, Ti-47wt. %Al-2wt.%Nb-2wt.%Cr and Ti-47wt.%Al-2wt.%Nb-2wt.%Mn-0.8wt.%TiB2 were nitrided in ammonia at atmospheric pressure and at 1000-1200 K for 3.6×105 s. The hardness and thickness of the nitride layers on the alloys were measured. It was found that the hardness values increased with increasing nitridation temperature and aluminum concentration in the alloys. The depth of nitridation and the mass gain of the nitrided specimens could be represented by an Arrhenius-type equation and the activation energies were calculated. The x-ray diffraction results were explained and are in agreement with the improvement of the hardness. Copyright © 2001 John Wiley & Sons, Ltd. |
| format |
Conference or Workshop Item |
| author |
Thongtem S. Thongtem T. McNallan M. |
| spellingShingle |
Thongtem S. Thongtem T. McNallan M. Surface modification of the Ti-Al alloys at 1000-1200 K |
| author_facet |
Thongtem S. Thongtem T. McNallan M. |
| author_sort |
Thongtem S. |
| title |
Surface modification of the Ti-Al alloys at 1000-1200 K |
| title_short |
Surface modification of the Ti-Al alloys at 1000-1200 K |
| title_full |
Surface modification of the Ti-Al alloys at 1000-1200 K |
| title_fullStr |
Surface modification of the Ti-Al alloys at 1000-1200 K |
| title_full_unstemmed |
Surface modification of the Ti-Al alloys at 1000-1200 K |
| title_sort |
surface modification of the ti-al alloys at 1000-1200 k |
| publishDate |
2014 |
| url |
http://www.scopus.com/inward/record.url?eid=2-s2.0-0035420430&partnerID=40&md5=cfc3d3372304ad9547351e0edd861934 http://cmuir.cmu.ac.th/handle/6653943832/4811 |
| _version_ |
1681420307498270720 |