Oxidation Behavior of TiAl-Based Alloy Modified by Double-Glow Plasma Surface Alloying with Cr–Mo
A Cr–Mo alloyed layer was prepared on a TiAl-based alloy using plasma surface alloying technique. The isothermal oxidation kinetics of the untreated and treated samples was examined at 850 °C. The microstructure and phase composition of the alloyed layer were analyzed by scanning electron microscope...
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doaj-40b62e837a054a42aa6444cceed6ab9e2021-09-06T19:19:55ZengDe GruyterHigh Temperature Materials and Processes0334-64552191-03242017-07-0136766967510.1515/htmp-2015-0264Oxidation Behavior of TiAl-Based Alloy Modified by Double-Glow Plasma Surface Alloying with Cr–MoWei Xiangfei0Zhang Pingze1Wang Qiong2Wei Dongbo3Chen Xiaohu4College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, ChinaCollege of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, ChinaJiangsu Product Quality Testing and Inspection Institute, Nanjing 210007, ChinaCollege of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, ChinaCollege of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, ChinaA Cr–Mo alloyed layer was prepared on a TiAl-based alloy using plasma surface alloying technique. The isothermal oxidation kinetics of the untreated and treated samples was examined at 850 °C. The microstructure and phase composition of the alloyed layer were analyzed by scanning electron microscope (SEM), energy dispersive spectrometer (EDS) and X-ray powder diffraction (XRD). The morphology and constituent of the oxide scales were also analyzed. The results indicated that the oxidation resistance of TiAl was improved significantly after the alloying treatment. The oxide scale eventually became a mixture of Al2O3, Cr2O3 and TiO2. The oxide scale was dense and integrated throughout the oxidation process. The improvement was mainly owing to the enhancing of scale adhesion and the preferential oxidation of aluminum brought by the alloying effect for TiAl-based alloy.https://doi.org/10.1515/htmp-2015-0264tialcr–modouble-glow plasma surfaceoxidation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Wei Xiangfei Zhang Pingze Wang Qiong Wei Dongbo Chen Xiaohu |
spellingShingle |
Wei Xiangfei Zhang Pingze Wang Qiong Wei Dongbo Chen Xiaohu Oxidation Behavior of TiAl-Based Alloy Modified by Double-Glow Plasma Surface Alloying with Cr–Mo High Temperature Materials and Processes tial cr–mo double-glow plasma surface oxidation |
author_facet |
Wei Xiangfei Zhang Pingze Wang Qiong Wei Dongbo Chen Xiaohu |
author_sort |
Wei Xiangfei |
title |
Oxidation Behavior of TiAl-Based Alloy Modified by Double-Glow Plasma Surface Alloying with Cr–Mo |
title_short |
Oxidation Behavior of TiAl-Based Alloy Modified by Double-Glow Plasma Surface Alloying with Cr–Mo |
title_full |
Oxidation Behavior of TiAl-Based Alloy Modified by Double-Glow Plasma Surface Alloying with Cr–Mo |
title_fullStr |
Oxidation Behavior of TiAl-Based Alloy Modified by Double-Glow Plasma Surface Alloying with Cr–Mo |
title_full_unstemmed |
Oxidation Behavior of TiAl-Based Alloy Modified by Double-Glow Plasma Surface Alloying with Cr–Mo |
title_sort |
oxidation behavior of tial-based alloy modified by double-glow plasma surface alloying with cr–mo |
publisher |
De Gruyter |
series |
High Temperature Materials and Processes |
issn |
0334-6455 2191-0324 |
publishDate |
2017-07-01 |
description |
A Cr–Mo alloyed layer was prepared on a TiAl-based alloy using plasma surface alloying technique. The isothermal oxidation kinetics of the untreated and treated samples was examined at 850 °C. The microstructure and phase composition of the alloyed layer were analyzed by scanning electron microscope (SEM), energy dispersive spectrometer (EDS) and X-ray powder diffraction (XRD). The morphology and constituent of the oxide scales were also analyzed. The results indicated that the oxidation resistance of TiAl was improved significantly after the alloying treatment. The oxide scale eventually became a mixture of Al2O3, Cr2O3 and TiO2. The oxide scale was dense and integrated throughout the oxidation process. The improvement was mainly owing to the enhancing of scale adhesion and the preferential oxidation of aluminum brought by the alloying effect for TiAl-based alloy. |
topic |
tial cr–mo double-glow plasma surface oxidation |
url |
https://doi.org/10.1515/htmp-2015-0264 |
work_keys_str_mv |
AT weixiangfei oxidationbehavioroftialbasedalloymodifiedbydoubleglowplasmasurfacealloyingwithcrmo AT zhangpingze oxidationbehavioroftialbasedalloymodifiedbydoubleglowplasmasurfacealloyingwithcrmo AT wangqiong oxidationbehavioroftialbasedalloymodifiedbydoubleglowplasmasurfacealloyingwithcrmo AT weidongbo oxidationbehavioroftialbasedalloymodifiedbydoubleglowplasmasurfacealloyingwithcrmo AT chenxiaohu oxidationbehavioroftialbasedalloymodifiedbydoubleglowplasmasurfacealloyingwithcrmo |
_version_ |
1717777498644676608 |