Method for preparing nano spherical oxide dispersion strengthening phase

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United States of America

PATENT NO 12134128
APP PUB NO 20220111437A1
SERIAL NO

17533074

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Abstract

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A method for preparing a nano spherical oxide dispersion strengthening phase using a micron oxide is proposed for the first time. First, a micron oxide is used as a raw material to prepare a nano oxide with a completely amorphous structure/matrix alloy composite powder by mechanical ball milling in stages. In the first stage, ball milling is performed, causing the oxide to break and transform in structure, and achieving nano-sizing and completely amorphization, to prepare a composite powder with a completely amorphous structure nano oxide uniformly distributed in the matrix alloy powder; and in the second stage, the composite powder obtained in the first stage and the remaining matrix alloy powder are uniformly mixed by ball milling. Then, the uniformly mixed powder is sequentially subjected to hot forming, hot rolling, and heat treatment, to obtain a nano spherical oxide dispersion strengthened alloy.

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Patent Owner(s)

Patent OwnerAddress
CENTRAL SOUTH UNIVERSITYYUELU DISTRICT CITY HUNAN PROVINCE 410083 CHANGSHA LUSHAN ROAD NO 932 CHANGSHA CITY HUNAN PROVINCE 410083

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ai, Yongkang Changsha, CN 5 1
Cao, Bin Changsha, CN 259 1167
Li, Quan Changsha, CN 266 1571
Liu, Zuming Changsha, CN 13 6
Lu, Sizhe Changsha, CN 3 0
Nong, Bizhong Changsha, CN 5 1
Ren, Yake Changsha, CN 5 1
Wei, Bing Changsha, CN 40 510
Zhou, Xu Changsha, CN 98 802

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