公开(公告)号：US20170022586A1

公开(公告)日：2017-01-26

申请号：US15190502

申请日：2016-06-23

Applicant: ROLLS-ROYCE plc

Inventor： Mark C. HARDY ,  Howard J. STONE ,  Nicholas G. JONES ,  Paul M. MIGNANELLI

IPC: C22C19/05

CPC classification number: C22C19/058 ,  C22C19/05 ,  C22C19/055 ,  C22C19/056

Abstract: A nickel-base alloy of, in atomic percent unless otherwise stated, up to 8 percent Fe, up to 16 percent Co, between 15 and 25 percent Cr, up to 3 percent Mo, up to 2 percent W, between 3 and 5 percent Al, between 3 and 7.5 percent Nb, up to 3 percent Ta, up to 0.2 percent Ti, up to 0.5 percent C, up to 0.175 percent B, up to 0.07 percent Zr, up to 1 percent Mn, up to 1 percent Si, up to 0.2 percent Hf, the balance of Ni and incidental impurities, wherein the atomic ratio of Al to Nb is between 0.4 and 1.7, the atomic ratio of the sum of Al and Ti to Nb is between 0.4 and 1.8, and, the composition including at least 10 percent of elements from the group of Al, Nb, and Ti.

Abstract translation: 除非另有说明，镍基合金的原子百分比高达8％Fe，高达16％的Co，15％和25％之间的Cr，高达3％的Mo，高达2％的W，3％到5％ Al，3〜7.5％的Nb，3％Ta，高达0.2％的Ti，高达0.5％的C，高达0.175％的B，高达0.07％的Zr，高达1％的Mn，高达1％的Si ，高达0.2％的Hf，Ni和偶然杂质的平衡，其中Al与Nb的原子比在0.4和1.7之间，Al和Ti之和与Nb的原子比在0.4和1.8之间，并且 组成包括至少10％的来自Al，Nb和Ti组的元素。