Heat Treatment Studies on 50CrV4 Spring Steel

V. Anil Kumar; M.K. Karthikeyan; R.K. Gupta; P. Ramkumar; M. Uday Prakash

doi:10.4028/www.scientific.net/MSF.830-831.139

Paper Titles

Effect of Cooling Medium on Solution Treatment Response of Titanium Alloy Ti-5Al-5V-2Mo
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Effect of Reversion Heat Treatment on the Mechanical Properties of Thermally Embrittled UNS S32760 Duplex Stainless Steel
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Effects of Heat Treatment on the Tensile Properties of Flow-Formed AA6082 Aluminum Alloy Tube
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Heat Treatment of Friction Surfaced Steel-Aluminum Couple
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Heat Treatment Studies on 50CrV4 Spring Steel
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Hot Dip Aluminizing of 9Cr-1Mo Steels and their Heat Treatment
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Optimization of Aging Cycle of Stainless Maraging Steel Using Dilatometric and Differential Scanning Calorimetric Analysis to Improve its Strength
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Thermo Mechanical Working and Heat Treatment Studies on Meta-Stable Beta Titanium Alloy (Ti15V3Al3Sn3Cr) Plates
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Wetting Kinetics and Cooling Performance of PAG Polymer Quenchants
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HomeMaterials Science ForumMaterials Science Forum Vols. 830-831Heat Treatment Studies on 50CrV4 Spring Steel

Heat Treatment Studies on 50CrV4 Spring Steel

Abstract:

50CrV4 spring steel is a tough, shock resisting, shallow hardening chromium vanadium steel having high fatigue and impact resistance in the heat treated condition. It is used extensively in gears, pinions, springs, shafts, axles, pins, bolts, etc., which require high modulus of resilience. The alloy was realised through conventional melt route of electric arc furnace (EAF) followed by ESR. The application of the alloy is limited to a section thickness of 15mm [1]. Hence obtaining optimum mechanical properties becomes a challenging task. In this study, the hardening as well as tempering operations were limited to 15mm thickness. The samples from the alloy were subjected to hardening at 860°C for 1.25 h. and oil quenching to room temperature followed by tempering at four different temperatures of 250, 300, 370 & 450°C for 3 h. each with oil quenching to room temperature. It was found that the alloy exhibited good combination of strength and ductility when tempered at 450°C. Microstructural study revealed the presence of fine tempered lath martensite along with the presence of a very small amount of delta ferrite along prior austenitic grain boundaries.