Photo from wikipedia
This research investigates the mechanical properties of a Cr-Ni-Mo-alloyed rock drill steel tempered at different temperatures from 150 to 550 degrees C. The highest strength, hardness, and impact energy occur… Click to show full abstract
This research investigates the mechanical properties of a Cr-Ni-Mo-alloyed rock drill steel tempered at different temperatures from 150 to 550 degrees C. The highest strength, hardness, and impact energy occur when the steel is tempered at 180 degrees C. Strength, hardness, and impact energy decrease with increasing tempering temperature from 180 to 400 degrees C. For tempering temperatures higher than 400 degrees C, the steel exhibits: 1) an increase in impact energy; 2) an increase in strength and hardness when tempered at 420, 450, and 480 degrees C; and 3) a gradual decrease in strength and hardness when tempered at temperature higher than 480 degrees C. The mechanism of the changes of impact energy and hardness with tempering temperature is proposed.
Journal Title: steel research international
Year Published: 2019
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!