Nitridation of γ-TiAl alloys by direct metal-gas reaction at 1000-1300 K
Two γ-TiAl alloys, Ti-47at%Al-2at%Nb-2at%Cr (MJ12) and Ti-47at%Al-2at%Nb-2at%Mn-0.8at%TiB2 (MJ47), were nitrided by direct metal-gas reaction at 1000-1300 K in 10 cm3s-1NH 3. X-ray diffraction revealed formation of TiN at 1100-1300 K. Knoop microhardness values of the alloys were increased with an i...
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th-cmuir.6653943832-49512014-08-30T02:55:59Z Nitridation of γ-TiAl alloys by direct metal-gas reaction at 1000-1300 K Thongtem S. Boonruang C. Thongtem T. McNallan M. Two γ-TiAl alloys, Ti-47at%Al-2at%Nb-2at%Cr (MJ12) and Ti-47at%Al-2at%Nb-2at%Mn-0.8at%TiB2 (MJ47), were nitrided by direct metal-gas reaction at 1000-1300 K in 10 cm3s-1NH 3. X-ray diffraction revealed formation of TiN at 1100-1300 K. Knoop microhardness values of the alloys were increased with an increase in the nitridation temperature. Microhardness values of MJ12 and MJ47 with 1300 K nitridation were respectively improved to 1.65 and 1.38 times those of the controls. Nitridation depth at a variety of temperature determined by Rutherford backscattering spectrometry was increased with an increase in the temperature. Ti, Al and N concentrations at a variety of depths analysed by scanning electron microscopy and energy dispersive X-ray linescanning are also explained. Copyright © 2005 John Wiley & Sons, Ltd. 2014-08-30T02:55:59Z 2014-08-30T02:55:59Z 2005 Article 01422421 10.1002/sia.2074 SIAND http://www.scopus.com/inward/record.url?eid=2-s2.0-24944549943&partnerID=40&md5=db85a56c3d12c7f37e9efce6ef896838 http://cmuir.cmu.ac.th/handle/6653943832/4951 English |
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Two γ-TiAl alloys, Ti-47at%Al-2at%Nb-2at%Cr (MJ12) and Ti-47at%Al-2at%Nb-2at%Mn-0.8at%TiB2 (MJ47), were nitrided by direct metal-gas reaction at 1000-1300 K in 10 cm3s-1NH 3. X-ray diffraction revealed formation of TiN at 1100-1300 K. Knoop microhardness values of the alloys were increased with an increase in the nitridation temperature. Microhardness values of MJ12 and MJ47 with 1300 K nitridation were respectively improved to 1.65 and 1.38 times those of the controls. Nitridation depth at a variety of temperature determined by Rutherford backscattering spectrometry was increased with an increase in the temperature. Ti, Al and N concentrations at a variety of depths analysed by scanning electron microscopy and energy dispersive X-ray linescanning are also explained. Copyright © 2005 John Wiley & Sons, Ltd. |
| format |
Article |
| author |
Thongtem S. Boonruang C. Thongtem T. McNallan M. |
| spellingShingle |
Thongtem S. Boonruang C. Thongtem T. McNallan M. Nitridation of γ-TiAl alloys by direct metal-gas reaction at 1000-1300 K |
| author_facet |
Thongtem S. Boonruang C. Thongtem T. McNallan M. |
| author_sort |
Thongtem S. |
| title |
Nitridation of γ-TiAl alloys by direct metal-gas reaction at 1000-1300 K |
| title_short |
Nitridation of γ-TiAl alloys by direct metal-gas reaction at 1000-1300 K |
| title_full |
Nitridation of γ-TiAl alloys by direct metal-gas reaction at 1000-1300 K |
| title_fullStr |
Nitridation of γ-TiAl alloys by direct metal-gas reaction at 1000-1300 K |
| title_full_unstemmed |
Nitridation of γ-TiAl alloys by direct metal-gas reaction at 1000-1300 K |
| title_sort |
nitridation of γ-tial alloys by direct metal-gas reaction at 1000-1300 k |
| publishDate |
2014 |
| url |
http://www.scopus.com/inward/record.url?eid=2-s2.0-24944549943&partnerID=40&md5=db85a56c3d12c7f37e9efce6ef896838 http://cmuir.cmu.ac.th/handle/6653943832/4951 |
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1681420333567967232 |