Advanced quantification of the carbide spacing and correlation with dimple size in a high-strength medium carbon martensitic steel

2020 ◽  
Vol 167 ◽  
pp. 110531
Author(s):  
Frank Tioguem ◽  
Franck N'guyen ◽  
Matthieu Mazière ◽  
Franck Tankoua ◽  
André Galtier ◽  
...  
2015 ◽  
Vol 46 (12) ◽  
pp. 5685-5696 ◽  
Author(s):  
Akinobu Shibata ◽  
Tamotsu Murata ◽  
Hiroshi Takahashi ◽  
Takahiro Matsuoka ◽  
Nobuhiro Tsuji

2003 ◽  
Vol 30 (5) ◽  
pp. 379-384 ◽  
Author(s):  
M. R. Suresh ◽  
I. Samajdar ◽  
A. Ingle ◽  
N. B. Ballal ◽  
P. K. Rao ◽  
...  

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6900
Author(s):  
Guolong Liu ◽  
Jingbao Liu ◽  
Jie Zhang ◽  
Minghe Zhang ◽  
Yunli Feng

The microstructure evolution and mechanical properties of medium carbon martensitic steel during the warm rolling and annealing process were studied by scanning electron microscope (SEM), electron back scattering diffraction (EBSD), and electronic universal testing machine. The results showed that the microstructure of ferrite matrix with mass dispersive cementite particles was obtained by decomposition of martensitic in medium-carbon martensitic steel after warm rolling. The grain size of ferrite was ~ 0.53 μm, the yield strength and tensile strength were 951 MPa and 968 MPa, respectively, and the total elongation rate was 11.5% after warm rolling at 600 °C. Additionally, after the next 4 h of annealing, the grain size of ferrite and particle size of cementite increased to ~1.35 μm and ~360 nm and the yield strength and tensile strength decreased to 600 MPa and 645 MPa, respectively, with a total elongation increases of 20.9%. The strength of the material increased with increasing strain rate in tension, and the yield-to-tensile strength ratio increased from 0.92 to 0.94 and maintained good plasticity.


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