Hardening mechanisms of steels with bainite and martensite structures
نویسندگان
چکیده
منابع مشابه
Color metallography; a suitable method for characterization of martensite and bainite in multiphase steels
Color metallography is a useful method for characterizing microstructures of steels with multiple phases. In this paper, application of three different color etching techniques for a bainitic-martensitic steel is reported. Comparisons between the results showed that 10% Na2S2O5 aqueous solution was the best etchant for distinguishing martensite, bainite and ferr...
متن کاملMartensite in Steels
The name martensite is after the German scientist Martens. It was used originally to describe the hard microconstituent found in quenched steels. Martensite remains of the greatest technological importance in steels where it can confer an outstanding combination of strength (> 3500MPa) and toughness (> 200MPam 1 2 ). Many materials other than steel are now known to exhibit the same type of soli...
متن کاملComputer Modelling for the Yield Strength of the Mixed Micro-Structures of Bainite and Martensite
The strength of mixed microstructures of bainite and martensite can peak at an intermediate volume fraction of martensite has been published by recently experimental studies. A quantitative interpretation of these observations is achieved by modelling the mechanical properties of mixed microstructures of bainite and martensite. The peak in the curve of the strength as a function of the volume f...
متن کاملcolor metallography; a suitable method for characterization of martensite and bainite in multiphase steels
color metallography is a useful method for characterizing microstructures of steels with multiple phases. in this paper, application of three different color etching techniques for a bainitic-martensitic steel is reported. comparisons between the results showed that 10% na2s2o5 aqueous solution was the best etchant for distinguishing martensite, bainite and ferrite phases. the obtained microgra...
متن کاملEffects of Strain Hardening and Fine Structure on Strength and Toughness of Tempered Martensite in Carbon Steels
A series of medium-carbon low alloy steels was quenched to martensite and tempered at 150 C. This low-temperature-tempered (LTT) martensite was subjected to uniaxial tensile and impact testing. Yield and ultimate tensile strength and uniform elongation increased, and post uniform and total elongation and fracture toughness decreased, with increasing carbon concentration. The carbon dependence o...
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ژورنال
عنوان ژورنال: Izvestiya Visshikh Uchebnykh Zavedenii. Chernaya Metallurgiya = Izvestiya. Ferrous Metallurgy
سال: 2018
ISSN: 2410-2091,0368-0797
DOI: 10.17073/0368-0797-2018-10-787-793