scholarly journals Microstructure Features and High Temperature Oxidation Resistance of In-Situ TiN-Ti Composite Coatings by Plasma Transferred Arc Welding

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4882
Author(s):  
Mengying Chen ◽  
Baoming Shi ◽  
Shiming Huang ◽  
Xuefei Qin ◽  
Yuan Feng ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxidation Resistance ◽  
Arc Welding ◽  
High Temperature Oxidation ◽  
Composite Coatings ◽  
Ti6al4v Alloy ◽  
Temperature Oxidation ◽  
Plasma Transferred Arc ◽  
Plasma Transferred Arc Welding

In order to improve the high temperature oxidation resistance of Ti6Al4V alloy, the in-situ TiN-Ti composite coatings were prepared with Ti-Cr-Ni-Nb powders by plasma transferred arc welding. Nitrogen gas was used as the transport gas and provided N source for the formation reaction of TiN. Microstructure features and high temperature oxidation behaviors of the composite coatings were studied. The phases in the composite coatings were TiN, Ti, CrN, and NiTi. It was clearly observed that in-situ TiN particles were evenly distributed in the Ti matrix. A little Nb atom dissolved in TiN particles, and others dissolved in the Ti matrix. By comparing the curve of Ti6Al4V alloy to that of the composite coatings, the oxidation mass gain of the composite coatings was comparatively less. The oxidation film of the composite coatings was smooth and compact, and no crack was visibly observed. Based on the results of the high temperature tests, the composite coatings exhibited superior high temperature oxidation resistance than Ti6Al4V alloy both at 650 °C and at 850 °C.

Study on Tribology and High-Temperature Oxidation Resistance of Laser Cladding Composite Coatings on Ti6Al4V Alloy

2015 ◽  
Vol 42 (10) ◽  
pp. 1003004
Author(s):  
余鹏程 Yu Pengcheng ◽  
刘秀波 Liu Xiubo ◽  
陆小龙 Lu Xiaolong ◽  
朱刚贤 Zhu Gangxian ◽  
陈瑶 Chen Yao ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxidation Resistance ◽  
Laser Cladding ◽  
High Temperature Oxidation ◽  
Composite Coatings ◽  
Ti6al4v Alloy ◽  
Temperature Oxidation

Microstructure and high-temperature oxidation resistance of laser cladding in-situ synthesis Ti-Al-Si composite coatings

2019 ◽  
Vol 27 (2) ◽  
pp. 316-325
Author(s):  
刘洪喜 LIU Hong-xi ◽  
赵艳爽 ZHAO Yan-shuang ◽  
张晓伟 ZHANG Xiao-wei ◽  
郝轩宏 HAO Xuan-hong ◽  
张璐璐 ZHANG Lu-lu
Keyword(s):  
High Temperature ◽  
Oxidation Resistance ◽  
Laser Cladding ◽  
High Temperature Oxidation ◽  
Composite Coatings ◽  
In Situ Synthesis ◽  
Temperature Oxidation

Tribology and high-temperature oxidation behaviors of NiCrBSiFe composite coatings on Ti6Al4V alloy by laser cladding

RSC Advances ◽  
2015 ◽  
Vol 5 (93) ◽  
pp. 76516-76525 ◽  
Author(s):  
Peng-Cheng Yu ◽  
Xiu-Bo Liu ◽  
Xiao-Long Lu ◽  
Shi-Jie Qiao ◽  
Yong-Jie Zhai ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxidation Resistance ◽  
Laser Cladding ◽  
High Temperature Oxidation ◽  
Composite Coatings ◽  
Ti6al4v Alloy ◽  
Temperature Oxidation ◽  
High Temperature Wear ◽  
Oxidation Behaviors

In order to improve the high-temperature wear and oxidation resistance of Ti6Al4V alloys simultaneously, NiCrBSiFe composite coatings were deposited on a Ti6Al4V alloy by laser cladding.

High-Temperature Oxidation Resistance of Electroless Ni-P-ZrO2 Composite Coatings

2011 ◽  
Vol 686 ◽  
pp. 569-573 ◽  
Author(s):  
Ming Feng Tan ◽  
Wan Chang Sun ◽  
Lei Zhang ◽  
Quan Zhou ◽  
Jin Ding
Keyword(s):  
High Temperature ◽  
Carbon Steel ◽  
Oxidation Resistance ◽  
High Temperature Oxidation ◽  
Steel Substrate ◽  
Composite Coatings ◽  
Low Carbon ◽  
Temperature Oxidation ◽  
P Matrix ◽  
Electroless Ni

Electroless Ni-P coating containing ZrO2particles was successfully co-deposited on low carbon steel substrate. The surface and cross-sectional micrographs of the composite coatings were observed with scanning electron microscopy (SEM). And the chemical composition of the coating was analyzed with energy dispersive spectroscopy (EDS). The oxidation resistance was evaluated by weight gains during high temperature oxidation test. The results showed that the embedded ZrO2particles with irregular shape uniformly distributed in the entire Ni-P matrix, and the coating showed a good adhesion to the substrate. The weight gain curves of Ni-P-ZrO2composite coatings and Ni-P coating at 923K oxidation experiments were in accordance with . The ZrO2particles in Ni-P matrix could significantly enhance the high temperature oxidation resistance of the carbon steel substrate as compared to pure Ni-P coating.

scholarly journals High-temperature oxidation resistance of VCps-reinforced Fe-matrix composites using an in-situ reaction

AIP Advances ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 015319
Author(s):  
Pinghu Chen ◽  
Ruiqing Li ◽  
Ripeng Jiang ◽  
Songsheng Zeng ◽  
Yun Zhang ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxidation Resistance ◽  
High Temperature Oxidation ◽  
Matrix Composites ◽  
Temperature Oxidation ◽  
In Situ Reaction

Microstructure and High-Temperature Oxidation of Ni-Si3N4 Composite Coatings by Pulse Electrodeposition

2015 ◽  
Vol 817 ◽  
pp. 421-425
Author(s):  
Kun Zhao ◽  
Wan Chang Sun ◽  
Chun Yu Miao ◽  
Hui Cai ◽  
Ju Mei Zhang ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
High Temperature ◽  
Oxidation Resistance ◽  
High Temperature Oxidation ◽  
Composite Coatings ◽  
X Ray Diffraction ◽  
Temperature Oxidation ◽  
Electro Deposition ◽  
X Ray ◽  
Crystallite Structure

Nickel matrix and Si3N4 micron particles were co-deposited on the aluminum alloy by pulse electro-deposition for high temperature performance. Meanwhile, the oxidation resistance was evaluated through the high temperature oxidation test. The phase structure, micrographs and components of the composite coatings were investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM) together with energy dispersive spectroscopy (EDS) respectively. The results indicated that Si3N4 particles were uniformly distributed across the coating and there were no pores and cracks or other defects at the coating/substrate interface. Ni-Si3N4 composite coatings are characterized by pyramidal micro-crystallite structure. The thickness of Ni-Si3N4 composite coatings were up to 80 μm for 2h. The results also revealed that the Ni-Si3N4 composite coatings presented better oxidation resistance than the pure Ni coating and aluminum alloy at high temperature. After oxidation at 673 K for 8h, the oxidation resistance of Ni-Si3N4 composite coatings presented the improved oxidation resistance behavior compared to pure Ni and the aluminum alloy, respectively.

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