通过本征中间层增强奥氏体/铁素体钢双金属复合材料的扩散辅助键合

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

作者信息

He Chenwei, Pan Guangshan, Xie Lu, Peng Qing

机构信息

Reactor Engineering and Safety Research Center, China Nuclear Power Technology Research Institute Co Ltd., Shenzhen 518031, China.

China Ship Scientific Research Center, Wuxi 214082, China.

出版信息

Materials (Basel). 2021 May 6;14(9):2416. doi: 10.3390/ma14092416.

DOI:10.3390/ma14092416

PMID:34066477

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8125153/

Abstract

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.

摘要

我们通过分子动力学模拟和实验研究了本征中间层对奥氏体钢（不锈钢316L）和铁素体钢（低碳钢Q345R）在热轧过程中扩散辅助键合性能的影响。引入本征中间层（Cr或Ni）拓宽了扩散区域，从而增强了键合。扩散区域的厚度随温度升高而增大，在1800K温度下，Cr和Ni中间层的增强因子分别为195%和108%。进一步的扩散分析揭示了界面附近的不对称扩散。我们的实验研究证实了我们的计算发现。