Numerical simulation of brazing TiC cermet to iron with TiZrNiCu filler metal

The maximum thermal stress and stress concentration zones of iron/TiC cermet joint during cooling were studied. The results showed that the shear stress on iron/TiC cermet joint concentrated on the interface tip and the maximum shear stress appeared on the left tip of iron/TiZrNiCu interface. Positive tensile stress on TiC cermet undersurface concentrates on both sides of TiC cermet and its value decreases during cooling. Negative tensile stress on TiC cermet undersurface concentrates on the center of TiC cermet and its value increases during cooling. Brazing temperature has little effect on the development and maximum thermal stress.