Nickel-based alloy, high-temperature resistant spring from this alloy and method for the preparation of these spring

摘要

PROBLEM TO BE SOLVED: To provide an Ni-base alloy which is cheap and excellent in resistance to permanent set at a high temperature.;SOLUTION: This Ni-base alloy for a heat-resistant spring comprises 0.01-0.15 mass% C, 2.0 mass% or lower Si, 2.5 mass% or lower Mn, 12-25 mass% Cr, 5 mass% or lower Mo and/or 5 mass% or lower W, 1.5-3.5 mass% Ti, 0.7-2.5 mass% Al, 20 mass% or lower Fe, and the balance being Ni and unavoidable impurities. Based on atom.%, the ratio of Ti/Al is 0.6-1.5 and the content of Ti+Al is 4.0-8.5%.;COPYRIGHT: (C)2003,JPO