Abstract
The quench of 150CrNiMo steel after austenitization in wide temperature range is done. Amount and tendency to deformational-induced transformation of retained austenite are investigated. Abrasive wear resistance and hardness tests were carried out. It is shown that wear resistance is in negative correlation with hardness. The decrease of hardness with elevation of austenitization temperature is caused by rise of retained austenite amount. At the same time the ability of metastable retained austenite to deformational-induced martensitic transformation leads to increase as of wear resistance so and microhardness of worn surface.
Highlights
THE INFLUENCE OF QUENCH HARDENING TEMPERATURE ON PHASE COMPOSITION, STRUCTURE AND WEAR RESISTANCE OF 150CHNM STEEL
It is shown that wear resistance is in negative correlation with hardness
The decrease of hardness with elevation of austenitization temperature is caused by rise of retained austenite amount
Summary
THE INFLUENCE OF QUENCH HARDENING TEMPERATURE ON PHASE COMPOSITION, STRUCTURE AND WEAR RESISTANCE OF 150CHNM STEEL. ВЛИЯНИЕ ТЕМПЕРАТУРЫ ЗАКАЛКИ НА ФАЗОВЫЙ СОСТАВ, СТРУКТУРУ И ИЗНОСОСТОЙКОСТЬ СТАЛИ 150ХНМ Изучено влияние закалки в широком диапазоне температур на количество остаточного аустенита, его стабильность и способность к деформационному мартенситному превращению, упрочнение и износостойкость в процессе абразивного изнашивания стали 150ХНМ.
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