Effects of carbon content on the microstructure and mechanical properties of Inconel 718 alloy
For improving the service performance of Inconel 718 alloy, especially used as a corrosion resistance alloy for special environment at room temperature, the microstructure and mechanical property for different carbon-containing Inconel 718 alloys were investigated using the calculating of thermo-calc software and some experiments.The experimental results indicated that the morphology, distribution and types of carbides were hardly influenced by the solution treatment at 1050℃ for 1 h, which mainly existed in the form of MC.And the precipitation amount and particle size of carbides was decreased with the decreasing of carbon content, which was the mainly reason resulting in the increasing of ductility and toughness.In addition, moving dislocation could be restrained by the precipitation of carbides.Therefore, the strength could be benefited from the precipitation of carbides when the precipitation of γ”/γ” phase was not influenced by the precipitation of carbides.
Inconel 718 alloy microstructure carbides mechanical property
Wen-jie ZHENG Xian-ping WEI Zhi-gang SONG Qi-long Yong
Central Iron & Steel Research Institute, Beijing 100081 China
国内会议
西安
英文
103-112
2013-10-25（万方平台首次上网日期，不代表论文的发表时间）