Effects of Sintering Temperature and Cooling Rate on Mechanical Properties of Powder Injection Molded 316L Stainless Steel

• Main Authors: Raza, M.R., Ahmad, F., Mamat, O., Omar, M.A., German, RM, Muhsan, A.S.
• Format: Article
• Published: 2012
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://eprints.utp.edu.my/7597/1/Solid_State_Phenomena_Vol.185_%28Feb2012%29_pp_102-105.pdf; http://eprints.utp.edu.my/7597/

This research presents the effects of temperature and cooling rate on mechanical properties of powder injection molded 316L Stainless steel. Steel powder and binder were mixed together to produce the feedstock. The green samples were produced by injection molding and debinded. Brown test samples were sintered in vacuum at 1325ºC, 1360ºC and 1380ºC for 2h with two heating and cooling rates 5ºC/min and 10ºC/ min. The test samples sintered at 1325ºC achieved maximum sintered density. The higher cooling rate improved the strength of the sintered test samples. The maximum sintered density of 96% and tensile strength of 503MPa was achieved and these results are comparable to the wrought 316L stainless steel (according to ASTM standard).