Mechanical properties and failure behavior of resistance spot welded third-generation advanced high strength steels

2021 ◽  
Vol 65 ◽  
pp. 364-372
Author(s):  
M. Shojaee ◽  
A.R.H. Midawi ◽  
B. Barber ◽  
H. Ghassemi-Armaki ◽  
M. Worswick ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Strength Steels ◽  
High Strength ◽  
Failure Behavior ◽  
Third Generation ◽  
Resistance Spot ◽  
Advanced High Strength Steels ◽  
Spot Welded

scholarly journals Mechanical Strength and Fracture of Resistance Spot Welded Advanced High Strength Steels

2015 ◽  
Vol 109 ◽  
pp. 450-456 ◽  
Author(s):  
Pasquale Russo Spena ◽  
Manuela De Maddis ◽  
Franco Lombardi
Keyword(s):  
Mechanical Strength ◽  
High Strength Steels ◽  
High Strength ◽  
Resistance Spot ◽  
Advanced High Strength Steels ◽  
Spot Welded

scholarly journals Microstructural characterization and mechanical properties of spot welded dissimilar advanced high strength steels

2021 ◽  
Author(s):  
Muhammad Sohaib Khan
Keyword(s):  
Mechanical Properties ◽  
High Strength Steels ◽  
High Strength ◽  
Microstructural Characterization ◽  
Advanced High Strength Steels ◽  
Spot Welded

Microstructural characterization and mechanical properties of spot welded dissimilar advanced high strength steels

scholarly journals Microstructural characterization and mechanical properties of spot welded dissimilar advanced high strength steels

2021 ◽  
Author(s):  
Muhammad Sohaib Khan
Keyword(s):  
Mechanical Properties ◽  
High Strength Steels ◽  
High Strength ◽  
Microstructural Characterization ◽  
Advanced High Strength Steels ◽  
Spot Welded

Microstructural characterization and mechanical properties of spot welded dissimilar advanced high strength steels

scholarly journals Using Intercritical CCT Diagrams and Multiple Linear Regression for the Development of Low-Alloyed Advanced High-Strength Steels

Metals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1768
Author(s):  
Bryan Y. Navarrete Pino ◽  
Antonio A. Torres Castillo ◽  
Emmanuel J. Gutiérrez Castañeda ◽  
Luis A. Espinosa Zúñiga ◽  
Lorena Hernández Hernández ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Linear Regression ◽  
Multiple Linear Regression ◽  
Phase Transformations ◽  
High Strength Steels ◽  
High Strength ◽  
Uniaxial Tensile ◽  
Third Generation ◽  
Thermal Cycles ◽  
Advanced High Strength Steels

The present work presents a theoretical and experimental study regarding the microstructure, phase transformations and mechanical properties of advanced high-strength steels (AHSS) of third generation produced by thermal cycles similar than those used in a continuous annealing and galvanizing (CAG) process. The evolution of microstructure and phase transformations were discussed from the behavior of intercritical continuous cooling transformation diagrams calculated with the software JMatPro, and further characterization of the steel by scanning electron microscopy, optical microscopy and dilatometry. Mechanical properties were estimated with a mathematical model obtained as a function of the alloying elements concentrations by multiple linear regression, and then compared to the experimental mechanical properties determined by uniaxial tensile tests. It was found that AHSS of third generation can be obtained by thermal cycles simulating CAG lines through modifications in chemistry of a commercial AISI-1015 steel, having an ultimate tensile strength of UTS = 1020–1080 MPa and an elongation to fracture of Ef = 21.5–25.3%, and microstructures consisting of a mixture of ferrite phase, bainite microconstituent and retained austenite/martensite islands. The determination coefficient obtained by multiple linear regression for UTS and Ef was R2 = 0.94 and R2 = 0.84, respectively. In addition, the percentage error for UTS and Ef was 2.45–7.87% and 1.18–16.27%, respectively. Therefore, the proposed model can be used with a good approximation for the prediction of mechanical properties of low-alloyed AHSS.

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