Enhancement of Diffusion Assisted Bonding of the Bimetal Composite of Austenitic/Ferric Steels via Intrinsic Interlayers

We investigate the effect of the intrinsic interlayers on the diffusion assisted bonding properties of the austenitic steel (stainless steel 316L) and ferric steels (Low-carbon steel Q345R) in a hot rolling process by molecular dynamics simulations and experiment. The introduction of an intrinsic in...

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Bibliographic Details
Published in:Materials 2021-05, Vol.14 (9), p.2416
Main Authors: He, Chenwei, Pan, Guangshan, Xie, Lu, Peng, Qing
Format: Article
Language:English
Subjects:
Austenitic stainless steels
Bimetals
Carbon steel
Diffusion welding
Friction welding
Hot rolling
Interfaces
Interfacial bonding
Interlayers
Low carbon steels
Mechanical properties
Misfit dislocations
Molecular dynamics
Simulation
Stainless steel
Tensile strength
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Summary:We investigate the effect of the intrinsic interlayers on the diffusion assisted bonding properties of the austenitic steel (stainless steel 316L) and ferric steels (Low-carbon steel Q345R) in a hot rolling process by molecular dynamics simulations and experiment. The introduction of an intrinsic interlayer (Cr or Ni) widens the diffusion region, leading to enhancement of bonding. The thickness of the diffusion region enlarges with an increase of temperature, with an enhancement factor of 195% and 108%, for Cr and Ni interlayer, respectively, at the temperature of 1800 K. Further diffusion analysis reveals the unsymmetrical diffusion near the interface. Our experimental investigation evidenced our computation discovery.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma14092416