Characterization of resistance spot welded transformation induced plasticity (TRIP) steels with different silicon and carbon contents

2018 ◽  
Vol 32 ◽  
pp. 307-317 ◽  
Author(s):  
V.H. Vargas ◽  
I. Mejía ◽  
V.H. Baltazar-Hernández ◽  
C. Maldonado
Keyword(s):  
Transformation Induced Plasticity ◽  
Trip Steels ◽  
Resistance Spot ◽  
Spot Welded

Effect of silica content on mechanical and microstructure behaviour of resistance spot welded advanced automotive TRIP steels

2021 ◽  
Author(s):  
Paranthaman V ◽  
Shanmuga Sundaram K ◽  
L Natrayan
Keyword(s):  
Fusion Zone ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Welding Process ◽  
Tensile Shear ◽  
X Ray Diffraction ◽  
X Ray ◽  
Trip Steels ◽  
Resistance Spot ◽  
Spot Welded

Abstract This research investigates the effect of SiC wt% on mechanical and microstructure behavior of transformation induced plasticity (TRIP) 780 steels by resistance spot welding. The resistance spot welded samples were characterized for their properties such as hardness, tensile shear, scanning electron microscope, X-ray diffraction, ductility ratio and elongation. Results showed that the width of the nugget was closely associated with shear failure of the spot welds. X-ray diffraction analysis illustrated that the weld steels chemical composition improved in the heat-affected zones and retained austenite detected due to the influence of Si and C. Sample 4 microstructure exposed the equiaxed dimple and finer dendrites in the fusion zone. It also exhibited maximum force and fracture energy. Nano hardness was significantly decreased in the fusion zone of sample 4 due to the interface among micro alloying elements and the formation of nonmetallic presences that affected the TRIP steel hardness. Low ductility ratios were observed in steel 4 than the other weld steels due to higher tensile shear strength (TSS) and cross-tension strength (CTS) results. Fracture analysis exhibited ductile fracture with dimples and dendrites in the TRIP steels surface. The spot-welded samples mechanical properties are correlated to chemical elements, mainly Si existing in casted TRIP steels through the cooling phase of the resistance spot welding process.

Characterization of resistance spot welded Al5052/DP590 dissimilar materials and processing optimization

2015 ◽  
Vol 33 (2) ◽  
pp. 56-61 ◽  
Author(s):  
Beom-Ji Jo ◽  
Ji-Sun Kim ◽  
Hyo-Sang Yoo ◽  
In-Ju Kim ◽  
Seong-Hui Lee ◽  
...  
Keyword(s):  
Dissimilar Materials ◽  
Resistance Spot ◽  
Processing Optimization ◽  
Spot Welded

scholarly journals Analysis of Microstructure for Resistance Spot Welded TRIP Steels using Atomic Force Microscope

2013 ◽  
Vol 31 (1) ◽  
pp. 43-50 ◽  
Author(s):  
Chul Young Choi ◽  
ChangWook Ji ◽  
Dae-Geun Nam ◽  
Jaeho Jang ◽  
Soon Kook Kim ◽  
...  
Keyword(s):  
Atomic Force Microscope ◽  
Trip Steels ◽  
Resistance Spot ◽  
Atomic Force ◽  
Spot Welded

scholarly journals Characterization of Microstructure and Mechanical Properties of Resistance Spot Welded DP600 Steel

Metals ◽  
2015 ◽  
Vol 5 (3) ◽  
pp. 1704-1716 ◽  
Author(s):  
Ali Ramazani ◽  
Krishnendu Mukherjee ◽  
Aydemir Abdurakhmanov ◽  
Mahmoud Abbasi ◽  
Ulrich Prahl
Keyword(s):  
Mechanical Properties ◽  
Resistance Spot ◽  
Microstructure And Mechanical Properties ◽  
Spot Welded
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