Influence of the quenching temperature on the phase composition, structure, and wear resistance of 150XHM steel

The influence of the quenching temperature on the quantity of residual austenite, its stability, and its ease of deformational martensitic transformation in 150XHM steel is studied. In the addition, the hardening and abrasive-wear resistance of the steel are studied as a function of the quenching temperature. The dependences of the steel's hardening and wear resistance on the quenching temperature are of opposite form. The drop in hardness with increase in quenching temperature is due to increase in the content of residual austenite. At the same time, the relative ease of deformational martensitic transformation in the metastable residual austenite results in increase in wear resistance and microhardness of the worn surface. © 2013 Allerton Press, Inc

IMPROVEMENT OF WEAR RESISTANCE OF PEARLITIC CLASS STEELS BY HIGH TEMPERATURE QUENCHING

В работе приведены результаты сравнительного изучения взаимосвязи структуры, формирующейся в процессе термической обработки, с абразивной износостойкостью сталей двух структурных классов – высокомарганцевой аустенитной стали 110Г13Л и сталей перлитного класса 70Х2ГСМЛ и 150ХНМЛ.The paper presents the results of a comparative study of the relationship between the structure formed in the heat treatment process and the abrasive wear resistance of steels of two structural classes-high-manganese austenitic steel 110Г13Л and pearlite grade 70X2ГСМЛ and 150ХНМЛ steels

FORMATION OF THE DISSIPATIVE STRUCTURE WITH MICRO-TRIP/ TWIP-EFFECT IN THE PERLITE STEEL 150HNML

The influence of quenching in a wide temperature range on the amount of residual austenite, its stability and ability to deformation martensitic transformation, hardening and wear resistance during abrasive wear of 150HNML steel was studied. It has been established that an increase in the relative wear resistance of steel with an increase in the quenching temperature is ensured by the formation of dispersed crystals of friction martensite.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 150ХНМЛ. Установлено, что увеличение относительной износостойкости стали с повышением температуры закалки обеспечивается образованием дисперсных кристаллов мартенсита трения