NI-BASED ALLOY HAVING EXCELLENT HYDROGEN EMBRITTLEMENT RESISTANCE, AND METHOD FOR PRODUCING NI-BASED ALLOY MATERIAL
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United States of America Patent
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Issued Date -
Aug 13, 2015
app pub date -
Aug 22, 2013
filing date -
Aug 24, 2012
priority date (Note) -
Published
status (Latency Note)
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Abstract
An object is to provide a Ni-based alloy having high strength and excellent hydrogen embrittlement resistance even in a high-temperature and high-pressure environment and particularly capable of being used for an ammonothermal pressure vessel and the like. The present invention relates to a Ni-based alloy including, in terms of mass ratios, Fe: 30 to 40%, Cr: 14 to 16%, Ti: 1.2 to 1.7%, Al: 1.1 to 1.5%, Nb: 1.9 to 2.7%, and P: 40 to 150 ppm, with the remainder being Ni and unavoidable impurities.
First Claim
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