GAMMA PRIME PRECIPITATION STRENGTHENED NICKEL-BASE SUPERALLOY FOR USE IN POWDER BASED ADDITIVE MANUFACTURING PROCESS

摘要

PROBLEM TO BE SOLVED: To provide a nickel-base superalloy powder for additive manufacturing of three-dimensional articles with a reduced hot cracking tendency.SOLUTION: A nickel-base superalloy powder for additive manufacturing of three-dimensional articles has a chemical composition that allows establishment of a gamma-prime precipitation content of 60-70 vol.% in the superalloy in a heat treated condition.