This study is concerned with a correlation between the microstructure and mechanical properties of 42CrMo4 steel which was subjected quenched-tempered and step-quenching heat treatment. Quench tempering and step quenching heat treatment produced a tempered martensite and an equiaxed Ferrite-Bainite-Martensite (F-B-M) microstructure, respectively. Tensile test results indicated a yield drop effect in F-B-M microstructure with ferritic matrix. This effect was not observed on the specimens with tempered martensite and F-B-M microstructure with hard phase B-M matrix. This effect can be attributed to dislocation generation in ferrite phase during bainitic and martensitic transformations. Fractographic investigations indicated intergranular cleavage in F-B-M microstructure and micro-void coalescence in tempered martensite microstructure can be attributed to carbide formation in martensitic structure during tempering micro-void coalescence in tempered martensite microstructure
Salemi, A., Abdollah, ,. A. & Mirzaee, M. (2010). An Investigation on Mechanical Properties of 42CrMo4 Steel with Tempered Martensite and Ferrite-Bainite-Martensite Microstructure. Modares Mechanical Engineering, 10(1), 63–76.
MLA
Salemi, A., Abdollah,. A., & Mirzaee, M. "An Investigation on Mechanical Properties of 42CrMo4 Steel with Tempered Martensite and Ferrite-Bainite-Martensite Microstructure", Modares Mechanical Engineering, 10, 1, 2010, 63–76.
HARVARD
Salemi, A., Abdollah,. A., & Mirzaee, M. (2010). 'An Investigation on Mechanical Properties of 42CrMo4 Steel with Tempered Martensite and Ferrite-Bainite-Martensite Microstructure', Modares Mechanical Engineering, 10(1), pp. 63–76.
CHICAGO
Salemi, A., Abdollah, ,. A. & Mirzaee, M., "An Investigation on Mechanical Properties of 42CrMo4 Steel with Tempered Martensite and Ferrite-Bainite-Martensite Microstructure." Modares Mechanical Engineering, 10 1 (2010): 63–76,
VANCOUVER
Salemi A., Abdollah ,. A., Mirzaee M. An Investigation on Mechanical Properties of 42CrMo4 Steel with Tempered Martensite and Ferrite-Bainite-Martensite Microstructure. Modares Mechanical Engineering. 2010;10(1):63–76 (In Persian).
