| Title |
Study on the Mechanical Properties of High Strength Low Alloy Steels with Vanadium |
| Authors |
김용규(Yong Kyu Kim); 이후철(Hoo Chul Lee); 윤종규(Chong Kyu Yoon); 김상주(Sang Joo Kim) |
| Abstract |
Effect of vanadium contents and tempering temperature on the mechanical properties of low carbon vanadium steel was studied with V content ranging from zero to 0.16% and tempering temperature of 500℃, 600℃ and 700℃. As the results, hardness, tensile strength, yield strength and wear resistance were increased with the increase of vanadium content and the maximum value was shown when 0.106% of vanadium was added and tempered at 600℃ for 1 hr. Vanadium carbides were dispersed in ferrite and randomly precipitated at dislocation sites. The improvement of the mechamical properties was interpreted in terms of grain refinement and locking of dislocations due to vanadium carbides. |