INVESTIGATION OF THE EFFECT OF HEAT TREATMENT CONDITIONS ON HARDNESS PROPERTIES OF MARAGING STEELS PRODUCED BY ADDITIVE MANUFACTURING

Authors : İlkgül ÖKSÜZCAN, Derya ÇAKAN, Mustafa Safa YILMAZ, Onur ERTUĞRUL

Pages : 654-662

Doi:10.46519/ij3dptdi.1024485

View : 26 | Download : 11

Publication Date : 2021-12-30

Article Type : Research Paper

Abstract :Additive Manufacturing insert ignore into journalissuearticles values(AM); technology produces parts in layers and offers design freedom insert ignore into journalissuearticles values(3D design);, zero waste, reduced expensive tool material requirements, and improved mechanical properties. Maraging steels have superior strength and toughness with adequate ductility. The effect of aging process parameters on the final properties of AM Maraging steels is enormous. In this study, the effects of heat treatment atmospheres and temperatures to the direct metal laser sintered insert ignore into journalissuearticles values(DMLS); maraging steels were examined. Aging heat treatment was applied in different atmospheresinsert ignore into journalissuearticles values(Ar/H2 and air); and temperaturesinsert ignore into journalissuearticles values(4900C,5200C,5500C,5800C);. SEM and XRD devices were used to examine the microstructure properties, and Vickers hardness device was used to determine the mechanical properties. When the results are evaluated, it was observed that the increased temperature after 490 0C adversely affected the hardness value. XRD analysis showed martensite and austenite phases in air and Ar/H2 atmospheres. According to the SEM images, it can be said that the traces of the melt pool remaining from the AM disappear with the increasing temperature in general.
Keywords : Additive Manufacture, Heat Treatment, Maraging Steel