Effect of Cryogenic Treatment on Hardness, Microstructure and Wear Behavior of Hot Die Steel Grade AISI-H13

摘要

In this experimental work effect of deep cryogenic treatment (Cl, done at -155°C) on the micro hardness, morphology of microstructure and dry sliding wear behavior of hot die steel grade AISI H13 studied in comparison to conventionally heat treated (A3T) samples of the same grade. Microstructure, Hardness and wear rate of CI and A3T group samples performed SEM analysis, Micro Vicker Hardness and Block-on-Ring dry sliding wear test against the hardened cold work die steel, grade AISI D3, roller (counter-face). Improved morphology of microstructure, micro hardness and higher resistance to wear evidenced in deep cryogenic treated samples.