scholarly journals Effect of Deformation Temperature on Microstructure Evolution and Mechanical Properties of Low-Carbon High-Mn Steel

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Adam Grajcar ◽  
Aleksandra Kozłowska ◽  
Santina Topolska ◽  
Mateusz Morawiec
Keyword(s):  
Mechanical Properties ◽  
Microstructure Evolution ◽  
Deformation Temperature ◽  
Testing Temperature ◽  
Dislocation Slip ◽  
Low Carbon ◽  
Car Crash ◽  
Mn Steel ◽  
High Manganese Austenitic Steel

This work addresses the influence of deformation temperature in a range from −40°C to 200°C on the microstructure evolution and mechanical properties of a low-carbon high-manganese austenitic steel. The temperature range was chosen to cope at the time during sheet processing or car crash events. Experimental results show that yield stress and ultimate tensile strength gradually deteriorate with an increase in the tensile testing temperature. The dominant mechanism responsible for the strain hardening of steel changes as a function of deformation temperature, which is related to stacking fault energy (SFE) changes. When the deformation temperature rises, twinning decreases while a role of dislocation slip increases.

On the intercritical annealing parameters and ensuing mechanical properties of low-carbon medium-Mn steel

2018 ◽  
Vol 733 ◽  
pp. 246-256 ◽  
Author(s):  
G.K. Bansal ◽  
D.A. Madhukar ◽  
A.K. Chandan ◽  
Ashok K. ◽  
G.K. Mandal ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Intercritical Annealing ◽  
Low Carbon ◽  
Medium Mn Steel ◽  
Mn Steel

Microstructure Evolution during Warm Deformation of Low Carbon Steel with Dispersed Cementite

2007 ◽  
Vol 558-559 ◽  
pp. 505-510 ◽  
Author(s):  
J. Gallego ◽  
Alberto Moreira Jorge ◽  
O. Balancin
Keyword(s):  
Microstructure Evolution ◽  
Large Strain ◽  
Cell Structure ◽  
Lath Martensite ◽  
Low Carbon Steel ◽  
Testing Temperature ◽  
Equivalent Strain ◽  
Low Carbon ◽  
Ultrafine Grained ◽  
Ebsd Technique

The microstructure evolution and mechanical behavior during large strain of a 0.16%CMn steel has been investigated by warm torsion tests. These experiments were carried out at 685 °C at equivalent strain rate of 0.1 s-1. The initial microstructure composed of a martensite matrix with uniformly dispersed fine cementite particles was attained by quenching and tempering. The microstructure evolution during tempering and straining was performed through interrupted tests. As the material was reheated to testing temperature, well-defined cell structure was created and subgrains within lath martensite were observed by TEM; strong recovery took place, decreasing the dislocation density. After 1 hour at the test temperature and without straining, EBSD technique showed the formation of new grains. The flow stress curves measured had a peculiar shape: rapid work hardening to a hump, followed by an extensive flow-softening region. 65% of the boundaries observed in the sample strained to ε = 1.0 were high angle grain boundaries. After straining to ε = 5.0, average ferrite grain size close to 1.5 1m was found, suggesting that dynamic recrystallization took place. Also, two sets of cementite particles were observed: large particles aligned with straining direction and smaller particles more uniformly dispersed. The fragmentation or grain subdivision that occurred during reheating and tempering time was essential for the formation of ultrafine grained microstructure.

Microstructure evolution and its effect on thermo-mechanical properties of low-carbon Al2O3-C refractories

2016 ◽  
Vol 42 (16) ◽  
pp. 19071-19078 ◽  
Author(s):  
Dingqiao Guo ◽  
Xiangcheng Li ◽  
Pingan Chen ◽  
Boquan Zhu ◽  
BinXiang Fang
Keyword(s):  
Mechanical Properties ◽  
Microstructure Evolution ◽  
Low Carbon

Role of Cerium on Transformation Kinetics and Mechanical Properties of Low Carbon Steels

2021 ◽  
Author(s):  
Chetan Kadgaye ◽  
Sk. Md. Hasan ◽  
Sudipta Patra ◽  
Mainak Ghosh ◽  
S. K. Nath ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Steels ◽  
Low Carbon ◽  
Transformation Kinetics ◽  
Low Carbon Steels
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