List of Articles عملیات زیر صفر عمیق Open Access Article Abstract Page Full-Text 1 - Evaluating the effect of deep cryogenic heat treatment on microstructure, wear and tension properties of the GOST9HF-steel at tempering temperature from 150 to 650˚C kamran amini Open Access Article Abstract Page Full-Text 2 - The effect of deep cryogenic treatment on the hardness and wear behavior of Din 1.2344 tool steel B. Mokarian Khozani K. Amini H. Ghayour