Thermal Expansions of 18-8 Austenitic Deposit Metal

Abstract

Thermal expansions of 18-8 multiple-deposited mletal have been measured by the dilatometer. Thermal expansion of the piled-up direction of beads is the least, compared with other directions, i.e., the direction of beads and the direction rectangular to the beads. It is due to the Cr-carbide precipitations along the calumnar crystals. Or, the contrary, thermal expansions of the multiple-deposited metals gained by mild steel electrodes have no unequal properties for the three directions.