scholarly journals Toughening of Low-Alloy Steel by Ultrafine-Grained Structure (Development of Fracture Control from Microstructure Design)

10.5772/63797 ◽  
2016 ◽  
Author(s):  
Tadanobu Inoue
Keyword(s):  
Alloy Steel ◽  
Low Alloy Steel ◽  
Structure Development ◽  
Microstructure Design ◽  
Ultrafine Grained Structure ◽  
Ultrafine Grained ◽  
Fracture Control

Ultrafine Grained High Strength Low Alloy Steel with High Strength and High Ductility

2010 ◽  
Vol 654-656 ◽  
pp. 238-241 ◽  
Author(s):  
Jie Shi ◽  
Wen Quan Cao ◽  
Han Dong
Keyword(s):  
Electron Microscopy ◽  
Alloy Steel ◽  
Volume Fraction ◽  
High Strength ◽  
Uniaxial Tensile ◽  
X Rays ◽  
High Ductility ◽  
Low Alloy Steel ◽  
Uniaxial Tensile Testing ◽  
Ultrafine Grained

In this study a C-Mn High Strength Low Alloy steel (HSLAs) was processed by quenching and austenite reverted transformation during annealing (ART-annealing), which results in an ultrafine grained duplex microstructure characterized by scanning electron microscopy equipped with electron back scattered diffraction, transmission electron microscopy and x-rays diffraction (SEM/EBSD, TEM and XRD). Microstructural observation revealed that the full hard martensitic microstucture gradually transformed into ultrafine grained duplex structure with austenite volume fraction up to 30% at specific annealing conditions. Mechanical properties of this processed steel measured by uniaxial tensile testing demonstrated that an excellent combination of strength (Rm~1GPa) and total elongation (A5~40%) at 30% metastable austenite condition in studied C-Mn-HSLAs. This substantially improved strength and ductility were attributed to the strain induced phase transformation of retained austenite dispersed throughout the ultrafine grained microstructure. At last it is proposed that ART-annealing is a promising way to produce high strength and high ductility steel products.

Microstructure and nanoindentation hardness of shot-peened ultrafine-grained low-alloy steel

2018 ◽  
Vol 26 (5) ◽  
pp. 472-482 ◽  
Author(s):  
Xiao-wei Feng ◽  
Juan Xie ◽  
Wen-ying Xue ◽  
Yong-feng Shen ◽  
Hong-bo Wang ◽  
...  
Keyword(s):  
Alloy Steel ◽  
Low Alloy Steel ◽  
Ultrafine Grained ◽  
Nanoindentation Hardness

On Corrosion Resistance Of Austenitic Stainless Steel Clad Layer on a Low Alloy Steel

2018 ◽  
Vol 32 (3) ◽  
pp. 20
Author(s):  
Manas Kumar Saha ◽  
Ritesh Hazra ◽  
Ajit Mondal ◽  
Santanu Das
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Alloy Steel ◽  
Low Alloy Steel ◽  
Clad Layer
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