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HARDENED NICKEL-CHROMIUM-TITANIUM-ALUMINUM ALLOY WITH GOOD WEAR RESISTANCE, CREEP RESISTANCE, CORROSION RESISTANCE AND WORKABILITY
专利权人:
VDM METALS GMBH
发明人:
HATTENDORF Heike,KLOEWER Jutta
申请号:
US201515104306
公开号:
US2016312341(A1)
申请日:
2015.01.12
申请国别(地区):
美国
年份:
2016
代理人:
摘要:
Hardened nickel-chromium-titanium-aluminum wrought alloy with good wear resistance as well as very good resistance to corrosion at a high temperature, good creep resistance, and good workability contains, (in mass %) 5-35% chromium, 1.0-3.0% titanium, 0.6-2.0% aluminum, 0.005-0.10% carbon, 0.0005-0.050% nitrogen, 0.0005-0.030% phosphorus, max. 0.010% sulfur, max. 0.020% oxygen, max. 0.70% silicon, max. 2.0% manganese, max. 0.05% magnesium, max. 0.05% calcium, max. 2.0% molybdenum, max. 2.0% tungsten, max. 0.5% niobium, max. 0.5% copper, max. 0.5% vanadium, if required, 0-20% Fe, if required, 0-15% cobalt, if required 0-0.20% Zr, if required 0.0001-0.008% boron, the remainder being nickel and the usual impurities related to the method. The nickel content is greater than 35%. The relation of Cr+Fe+Co≧26% (1) must be fulfilled in order to achieve good wear resistance and the relation fh≧0 (2a) in which fh=6.49+3.88 Ti+1.36 Al−0.301 Fe+(0.759−0.0209 Co) Co−0.428 Cr−28.2 C (2) must be fulfilled so that
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