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| Study on preparation of high-performance ODS alloy via powder metallurgy |
| ZHOU Zhihong1，MA Jiao1，PENG Jinyan1，KANG Ruichao1，YANG Shengbing2，
LI Weihang3 |
| （1. Hunan Sany Industrial Vocational and technical college, Changsha 410129, China; 2. School of automobile,
Wuhan University of technology, Wuhan 430070, China; 3. School of Materials Science and Engineering, Hefei
University of Technology, Hefei 230009, China） |
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Abstract Oxide dispersion strengthened alloy was one of the most promising materials in nuclear reactor materials.
Thanks to the addition of a large number of evenly distributed nano oxides into the metal matrix, the alloy
had good high-temperature mechanical properties. At the same time, ODS Fe matrix alloy adding a certain proportion
of Cr and Al that will greatly improve the corrosion resistance. Since the comprehensive performance of
ODS alloy prepared by powder metallurgy was better than that of melting method, ODS alloy was mainly prepared
by powder metallurgy in recent years. This paper systematically summarized the recent preparation and sintering
processes of various alloy powders, including the preparation of alloy powders by mechanical alloying, internal
oxidation and hydrothermal-freeze drying, and the preparation of alloys by hot isostatic pressing, powder
forging and spark plasma sintering. At the same time, in order to provide reference for the preparation of ODS alloys
with excellent comprehensive properties, the current research results and existing problems of preparation
processes were expounded.
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Received: 06 May 2022
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2023, Vol. 33 
