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Metallographic diagram of 50 steel (intermediate frequency quenching, low temperature tempering)
The microstructure of 50 steel (medium frequency quenching, low temperature tempering) is mainly composed of eutectoid structure, the matrix is composed of ferrite and cementite, and the retained austenite converted from martensite ( M + A) is present in the quenched steel. Whenlow temperature tem......
22/06/2023 
1058 
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