발간논문

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Vol.33, No.8, 1001 ~ 1005, 1995
Title
Joining of Ni - Cr - Fe Alloy to Alumina Using Stress - Relieving Materials
이우천 Woo Chun Lee
Abstract
In order to prevent the cracking and fracture generated in the alumina/Inconel 600 joints after cooling, three types of insert materials with Ag-Cu-Ti filler metals was used in the joints. Effect of insert materials on the crack formation of the joints was investigated. The joints free from cracks were obtained when the laminates consisting of niobium of 250 ㎛ thick and copper of 50 ㎛ thick were used as insert materials. For the joints cooled at the rate of 4.8 ℃/min after brazing at 1113 K for 1.2 ks, the average shear strength was 75.7 MPa and the strength distribution showed the mixed mode.
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