Diffusion bonding is widely used for joining similar or dissimilar materials. It is necessary to develop a suitable approach to describe the variation of the bonding ratio throughout the bonding process. It helps to obtain the processing window based on limited experimental data. The analytical approach was developed to consider the effects of temperature, pressure and holding time on diffusion bonding ratio. The analytical approach of diffusion bonding of similar materials is further extended to that of dissimilar ones. Both approaches were verified by comparing the prediction and experiment data upon bonding ratio. The average absolute relative errors of the approaches of similar and dissimilar materials are 3.80% and 6.28%, respectively. Both approaches indicate good prediction accuracy.
Abstract. The microstructure and mechanical properties of 0Cr21Ni6Mn9N austenitic stainless steel cold drawn pipe were investigated at various annealing temperatures. It was found that the tensile strength and the yield strength increased slightly, and then decreased with the temperature increasing from 200 to 750 °C. The highest value of tensile strength and yield strength reached 1062 and 942MPa at 600 °C, respectively. However, the elongation has an opposite trend to the tensile strength and yield strength. The microstructure evolution of the cold drawn pipe annealed at different temperatures was observed. The results indicate that when annealed below 550 °C, recovery is dominant. At 550 °C, it is recovery and partial recrystallization. Over 550 °C, complete recrystallization has likely occurred. Moreover, the Cr 2 N particles near the grain boundaries were found, and the amount of precipitates along the grain boundary indexed as M 23 C 6 were increasing at 650-800 °C.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.