Welding Alloy Composition. Unused electrodes should be stored in a temperature controlled oven held in the range 250-400F 121-200C. Covered electrodes used from an unopened can require no further drying.
The most widely employed processes for welding the non-age-hardenable solid-solution-strengthened wrought nickel alloys are gas-tungsten arc welding GTAW gas-metal arc welding GMAW and shielded metal arc welding SMAW. Composite components with surfacing provided by the hardfacing method using sophisticated alloys. As already pointed out hardness and brittleness go together.
Material hardness and strength depend on alloy composition and heat treatment solution heat treatment and quenching followed by either natural or artificial ageing produces a fine dispersion of the alloying constituents.
Corrosion resistance of nickel alloy welds The performance of nickel alloy equipment in corrosive service is subject to the care taken by welders and others on the shop floor. Welding Alloys Group are proud to bring ground-breaking hardfacing technology to our customers. As already pointed out hardness and brittleness go together. Care must be exercised if welding a 1xxx series pure Al base alloy with a 4xxx series AlSi filler alloy to prevent a weld metal chemistry mixture within this crack sensitive range.