Ni-base alloy excellent in hot forgeability, high-temperature oxidation resistance and high-temperature halogen gas corrosion resistance, and member using this Ni-base alloy

摘要

PROBLEM TO BE SOLVED: To provide a Ni-based alloy excellent in hot forging property, high temperature oxidation resistance and high temperature halogen gas corrosion property, suitable as a constituent material of a firing tray of a chip capacitor, a firing tray of a lithium battery positive electrode substance, a CVD device member, a PVD device member, an LCD device member and a semiconductor equipment member.SOLUTION: There is provided a Ni-based alloy excellent in hot forging property, high temperature oxidation resistance and high temperature halogen gas corrosion property, containing, by wt.%, Al: 2.0 to 5.0%, Si: 0.1 to 2.5%, Cr: 0.8 to 4.0%, Mn: 0.1 to 1.5%, B: 0.001 to 0.01%, Zr: 0.001 to 0.1% and the balance Ni with inevitable impurities.