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- W2381701941 abstract "Co-Al-W superalloy is strengthened by a ternary compound γ′-Co 3(Al,W) phase with the precipitation strengthening on γ-Co matrix of novel Co-base superalloys.In order to research the welding performance of Co-9Al-7.5W(mole fraction,%) superalloy on the 304 stainless steel by TIG cladding,and the friction coefficient of Co-9Al-7.5W cladding layer superalloy mated with SiN ring was investigated by THT07-135 type friction and wear tester and SEM,which compare with cobalt-based Stellite 6 resistant alloy at the same conditions.The results show that TIG welding Co-9Al-7.5W superalloy optimum parameters are that the welding current is 100 A,welding voltage is 12 V,heat input is 10.3 kJ/cm,the surface hardness of 7.5W cladding layer superalloy reaches HRC53.1.The wear mass loss of 7.5W cladding layer superalloy increases with increasing wear time.The wear mass loss of 7.5W cladding layer is slightly larger than that of Stellite 6 alloy,but the friction coefficient of 7.5W cladding layer is obviously smaller than that of Stellite 6 alloy.The average friction coefficient of 7.5W cladding layer is 0.471.But the friction coefficient of Stellite 6 alloy is 0.531.The wear resistance of 7.5W cladding layer is better than that of Stellite 6 alloy.The 7.5W cladding layer is mainly oxidation and abrasive wear,but Stellite 6 alloy mainly occur delamination and abrasive wear." @default.
- W2381701941 created "2016-06-24" @default.
- W2381701941 creator A5079477151 @default.
- W2381701941 date "2013-01-01" @default.
- W2381701941 modified "2023-09-24" @default.
- W2381701941 title "Microstructure and wear resistance of TIG cladding novel Co-9Al-7.5W superalloy" @default.
- W2381701941 hasPublicationYear "2013" @default.
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