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Zusammenhang zwischen Rockwell Härte und Perlitzeilenabstand von unter verschiedenen Abkühlgeschwindigkeiten gehärteten Bereichen eines Eisenbahnschienenstahls (U75 V 60 kg m −1 )
Author(s) -
Kang H.,
Wang Z.H.,
Li Y.Y.,
Li C.N.
Publication year - 2021
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201900198
Subject(s) - pearlite , lamellar structure , rockwell scale , materials science , metallurgy , composite material , microstructure , austenite
In this study, the heat treatment processes for U75 V heavy rail were studied systematically. Further, a simple and convenient method for measuring pearlite average lamellar spacing in steel by electron probe analysis is introduced, which can make the results closer to the real pearlite average lamellar spacing. This method was used to measure the pearlite average lamellar spacing at different positions of rail head under different heat treatments. Furthermore, the relationship between pearlite average lamellar spacing and Rockwell hardness of U75 V rail steel was determined. This study will provide important theoretical guidance for the formulation of rail heat treatment processes and the measurement of pearlite average lamellar spacing in steel.