Impact Resistance and Fracture Toughness of Vanadium-Based Microalloyed Forging Steel in the As-Forged and Q&T Conditions

[+] Author and Article Information
L. Yang, A. Fatemi

Mechanical, Industrial and Manufacturing Engineering Department, The University of Toledo, Toledo, OH 43606

J. Eng. Mater. Technol 118(1), 71-79 (Jan 01, 1996) (9 pages) doi:10.1115/1.2805936 History: Received July 24, 1994; Revised March 27, 1995; Online November 27, 2007


Microalloyed (MA) steels are a family of steels which are becoming an increasingly important economic alternative to the traditional quenched and tempered (Q&T) steels. Impact resistance and fracture toughness of vanadium-based MA forging steel, which is the most commonly produced MA steel, are investigated in this study. To compare the behavior with the Q&T steel, both the as-forged and the Q&T conditions are evaluated. Experimental results from Charpy V-notch impact and fracture toughness (KR -curve and JIC ) tests are presented and discussed. Correlations between fracture resistance properties based on several proposed equations in the literature are also examined.

Copyright © 1996 by The American Society of Mechanical Engineers
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