Mechanical properties and tensile deformation behavior of a reduced activated ferritic-martensitic (RAFM) steel at elevated temperatures

2018 ◽  
Vol 725 ◽  
pp. 283-289 ◽  
Author(s):  
Chunliang Mao ◽  
Chenxi Liu ◽  
Liming Yu ◽  
Huijun Li ◽  
Yongchang Liu
2009 ◽  
Vol 471 (1-2) ◽  
pp. 331-335 ◽  
Author(s):  
Y. Wang ◽  
W.Z. Shao ◽  
L. Zhen ◽  
C. Yang ◽  
X.M. Zhang

2010 ◽  
Vol 654-656 ◽  
pp. 174-177
Author(s):  
Tae Jin Song ◽  
Jai Hyun Kwak ◽  
Bruno C. De Cooman

Thermal cycles of conventional galvanizing and galvannealing processes were applied to low carbon martensitic steels to examine the mechanical property of martensitic steels after their processing in conventional Continuous Galvanizing Lines (CGL). During the thermal cycle simulation, tempering phenomena occurred resulting in changes of microstructure and mechanical properties. In this study, the tensile deformation behavior of martensitic steels was studied in detail in order to understand the tempering phenomena occurring during their processing. It was found that, after tempering, the strain hardening ability decreased drastically and that the plastic flow became localized. An experimental analysis of this phenomenon will be presented based on TEM microstructural observation and Internal Friction measurements.


2012 ◽  
Vol 152-154 ◽  
pp. 358-363 ◽  
Author(s):  
Guo Wei Zhou ◽  
Da Yong Li ◽  
Ying Hong Peng

Uniaxial tensile deformation behavior of 7075-T6 under three different strain rates (0.001, 0.004 and 0.03s-1) and five different temperatures (50, 100, 150, 200 and 250°C) is studied. The total elongation in uniaxial tension increases with increasing temperature in range of 50-200°C and decreases with increasing strain rate. But it drops sharply at 250°C. SEM observations of the fracture surface interpret the change of total elongation and show the fracture tends to transit from brittle mode to ductile mode with increasing temperature. The constitutive model and yield function related with temperature are established based on the experiment results.


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