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石晨晓,刘元富,李勇,孙广宝,张政,冯志成.等离子熔化沉积TiC增强Inconel 718基原位自生复合材料显微组织及高温耐磨性[J].稀有金属材料与工程(英文),2019,48(5):1497~1504.[Shi Chenxiao,Liu Yuanfu,Li Yong,Sun Guangbao,Zhang Zheng and Feng Zhicheng.Microstructure and High Temperature Wear Resistance of TiC/Inconel 718 Composites In-situ Synthesized by Plasma Melting Deposition Technique[J].Rare Metal Materials and Engineering,2019,48(5):1497~1504.]
Microstructure and High Temperature Wear Resistance of TiC/Inconel 718 Composites In-situ Synthesized by Plasma Melting Deposition Technique
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Received:March 16, 2018  Revised:May 08, 2018
DOI:
Key words: plasma melting deposition  Inconel 718  microstructure  in-situ synthesis  high temperature wear resistance.
Foundation item:清华大学摩擦学国家重点实验室开放基金资助(项目号SKLTKF17B06)
Author NameAffiliation
Shi Chenxiao,Liu Yuanfu,Li Yong,Sun Guangbao,Zhang Zheng and Feng Zhicheng  
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Abstract:
      In order to modify the wear resistance of Inconel 718 superalloy, TiC reinforced Inconel 718 superalloy based composites were in-situ synthesized by co-axial powder feeding plasma melting deposition technique. Microstructure and in-situ synthesized process of the composites was analysed. The effect of volume fraction of the TiC reinforcing phase on microhardness and high temperature dry sliding wear properties of composites was discussed. The high temperature wear mechanism of the composites was studied. Results show that the microstructure of composites is refined and dense, microhardness values are remarkably influenced by the volume fraction of the TiC primary phase. The higher the volume fraction of the TiC primary phase, the higher the microhardness values of the composites. The composites showed excellent wear resistance under high temperature dry sliding wear test conditions.