Abstract
The quality of the L245/316L bimetallic clad tube is greatly decided by the stability of the liner. In this work, the ABAQUS finite element software was used to simulate and analyze the instability and deformation of the L245/316L bimetallic clad tube liner during the coating process under different temperatures and during the compression and depressurization process under the condition that whether there was defect in the substrate and liner. The simulation and analysis results demonstrated that coating under the temperature of 230°C could result in the instability deformation of the liner because of the combining effects of thermal expansion and contraction, residual stress and external constraint. In addition, defects between the substrate and liner could lead to the instability deformation of the liner in the compression and depressurization process.
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