A combination of simulation and experimental approaches to optimize the vacuum carburizing process is necessary replace costly trial-and-error method in time resources. In order accurately predict microstructure evolution mechanical properties process, a multi-field multi-scale coupled model considering interaction temperature, diffusion, phase transformation, stress was established. Meanwhile,...

DIN 15CrNi6 is the most representative grade of case-hardened steels. The present work analyses influence carburizing time on hardness specific steel. Specimens with similar chemical composition were heated at 900°C in liquid carbonaceous media for one, two, three and four hours, correspondingly. Then samples oil quenched tempered 180°C two hours. Microhardness was measured across carburized zo...

The importance of steel in manufacturing and construction over the past century cannot be over-emphasized easy accessibility couple with excellent mechanical properties make it preferable others. However, problem durability has posed a serious concern as majority application are meant for long term use. Several attempts have been made to improve increase carbon content low was found suitable ag...