Si_3N_4と金属接合継手における残留応力に関する検討 : 耐熱性ファインセラミックスの接合に関する研究(第4報)

概要

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Residual stress occurred in Si_3N_4 to metals joints were analyzed by thermal elastic-plastic finite element method. In order to investigate the effect of the bonded material to Si_3N_4 on residual stress, numerical analysis were conducted on the condition simulating Si_3N_4-Si_3N_4,W, Mo, Ta, Nb or Cr-Mo steel joints with the insert layer. Maximum principal stress occurred in Si_3N_4 was lowering in the order of Cr-Mo steel, Nb, Ta, Mo, W, Si_3N_4. Maximum principal stress in Si_3N_4 of Si_3N_4 to Cr-Mo steel joints decreased with increasing the insert layer thickess in the range up to about 1.0 mm thick. As diameter of specimen increased, maximum principal stress in Si_3N_4 increased. Maximum principal stress in Si_3N_4 of Si_3N_4 to Cr-Mo steel joints was reduced irrespective of diameter of specimen with an increase in the thickness of W being used as the interlayer.
社団法人溶接学会の論文
1989-05-05