scholarly journals Strain Hardening Behavior and Microstructure Evolution of High-Manganese Steel Subjected to Interrupted Tensile Tests

Metals ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 122 ◽  
Author(s):  
◽  
◽  
Keyword(s):  
Strain Hardening ◽  
Microstructure Evolution ◽  
Tensile Tests ◽  
Manganese Steel ◽  
High Manganese ◽  
High Manganese Steel ◽  
Hardening Behavior ◽  
Strain Hardening Behavior

Enhancing the crashworthiness of high-manganese steel by strain-hardening engineering, and tailored folding by local heat-treatment

2016 ◽  
Vol 110 ◽  
pp. 157-168 ◽  
Author(s):  
Markus Bambach ◽  
Laura Conrads ◽  
Markus Daamen ◽  
Onur Güvenç ◽  
Gerhard Hirt
Keyword(s):  
Heat Treatment ◽  
Strain Hardening ◽  
Local Heat ◽  
Manganese Steel ◽  
High Manganese ◽  
High Manganese Steel ◽  
Local Heat Treatment

Superior strain-hardening by deformation-induced nano-HCP martensite in Fe–Mn–Si–C high-manganese steel

2021 ◽  
pp. 141864
Author(s):  
Renlong Xiong ◽  
Huabei Peng ◽  
Tuanwei Zhang ◽  
Jae Wung Bae ◽  
Hyoung Seop Kim ◽  
...  
Keyword(s):  
Strain Hardening ◽  
Manganese Steel ◽  
High Manganese ◽  
High Manganese Steel

Effect of Microalloying Elements (B, Nb, V and Ti) on the Strain Hardening Behavior of High-Manganese TWIP Steels.

2012 ◽  
Vol 1373 ◽  
Author(s):  
F. Reyes-Calderón ◽  
I. Mejía ◽  
J.M. Cabrera
Keyword(s):  
Strain Hardening ◽  
True Strain ◽  
Research Work ◽  
Strain Hardening Exponent ◽  
High Manganese ◽  
Hardening Behavior ◽  
Slope Change ◽  
Twip Steels ◽  
Microalloying Elements ◽  
Strain Hardening Behavior

ABSTRACTThe present research work analyses the influence of microalloying elements (B, Nb, V and Ti) on the tensile strength and the strain hardening behavior of a high-manganese TWIP steel. The analysis was carried out by means of true stress-true strain curves derived from uniaxial tension tests. The work hardening exponent was determined by using the Hollomon and differential Crussard-Jaoul models. Metallographic characterization was carried out to determine the metallurgical changes associated with n values. The results indicate that the Hollomon analysis results in strain hardening exponent values up to 0.46. On the other hand, the differential Crussard-Jaoul analysis establishes a clear distinction of n value for two stages of plastic deformation which are determined by a sharp slope change in the plot of ln(dσ/dε)-lnε.

Microstructure Evolution of C-Mn-Si-Al-Nb High-Manganese Steel during the Thermomechanical Processing

2010 ◽  
Vol 638-642 ◽  
pp. 3224-3229 ◽  
Author(s):  
Leszek Adam Dobrzański ◽  
Adam Grajcar ◽  
Wojciech Borek
Keyword(s):  
Plastic Deformation ◽  
Microstructure Evolution ◽  
Thermomechanical Processing ◽  
True Strain ◽  
Manganese Steel ◽  
Compression Tests ◽  
High Manganese ◽  
High Manganese Steel ◽  
Fine Grained ◽  
Multi Stage

The aim of the paper is to determine the influence of hot deformation conditions on σ-ε curves and microstructure evolution of new-developed high-manganese C-Mn-Si-Al-Nb austenitic steel. The force-energetic parameters of hot-working were determined in continuous and multi-stage compression tests performed in a temperature range of 850 to 1100°C by the use of the Gleeble 3800 thermomechanical simulator. Evaluation of processes controlling work-hardening were identified by microstructure observations of the specimens water-quenched after various conditions of plastic deformation. Multi-stage compression tests with true strain of 0.29 permit to use the dynamic and metadynamic recrystallization for forming the fine-grained, austenite microstructure of steel in the whole range of deformation temperature.

Effect of Initial Processing on the Microstructure-Property Relationships in Bake-Hardened C-Mn-Si TRIP Steels

2007 ◽  
Vol 539-543 ◽  
pp. 4315-4320 ◽  
Author(s):  
Ilana B. Timokhina ◽  
Elena V. Pereloma ◽  
Peter D. Hodgson
Keyword(s):  
Strain Hardening ◽  
Volume Fraction ◽  
Bainitic Ferrite ◽  
Tensile Tests ◽  
Trip Steels ◽  
Hardening Behavior ◽  
Transmission Electron ◽  
Before And After ◽  
Initial Processing ◽  
Strain Hardening Behavior

The effect of pre-straining (PS) and bake-hardening (BH) on the microstructure and mechanical properties has been studied in C-Mn-Si TRansformation Induced Plasticity (TRIP) steels after: (i) thermomechanically processing (TMP) and (ii) intercritical annealing. The steels were characterised before and after PS/BH by transmission electron microscopy (TEM), X-ray diffraction (XRD), and tensile tests. The main microstructural differences were the higher volume fraction of bainite and more stable retained austenite in the TMP steel. This led to a difference in the strain-hardening behavior before and after BH treatment. The higher dislocation density in ferrite and formation of microbands in the TMP steel after PS and the formation of Fe3C carbides between the bainitic ferrite laths during BH for both steels also affected the strain-hardening behavior. However, both steels after PS/BH treatment demonstrated an increase in the yield and tensile strength.

scholarly journals Microstructure, crystallographic texture and strain hardening behavior in hot tensile tests of UNS S32304 Lean Duplex stainless steel

2021 ◽  
Vol 12 ◽  
pp. 1065-1079
Author(s):  
Ariane Neves de Moura ◽  
Carlos Alberto Rosa Neto ◽  
Nicolau Apoena Castro ◽  
Estéfano Aparecido Vieira ◽  
Marcos Tadeu D'Azeredo Orlando
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Strain Hardening ◽  
Crystallographic Texture ◽  
Tensile Tests ◽  
Lean Duplex Stainless Steel ◽  
Hardening Behavior ◽  
Strain Hardening Behavior
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