FORMATION OF PRECIPITATED AUSTENITE IN 9％ Ni STEEL AND ITS FUNCTION AT CRYOGENIC TEMPERATURE
LEI Ming;GUO Yunyi Institute of Metal Research; Academic Sinica; Shenyang
Cite this article:
LEI Ming;GUO Yunyi Institute of Metal Research; Academic Sinica; Shenyang. FORMATION OF PRECIPITATED AUSTENITE IN 9％ Ni STEEL AND ITS FUNCTION AT CRYOGENIC TEMPERATURE. Acta Metall Sin, 1989, 25(1): 13-17.
Abstract Streaks of austenite-rich and ferrite-rich bands produce during thesoaking at α+γ region because of the re-distribution of elements. Part of the aus-tenite formed at intermediate temperatures transforms into martensite while thesteel was cooled down to room temperature. The structure which consists of finemartensite and austenite exhibits a moderate strength and high enough cryogenictoughness. One of the important cause of the excellent cryogenic properties is thatthe precipitated austenite absorbs the impurities and thus purifies the matrix of thesteel.
MENG Xiangmin; LI Guanglai; ZHANG Futian; WU Yakun(Laboratory of Atomic Imaging of Solids; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang110015)Comspondent: MENG Xiangmin; Tel: (024)3843531-55491; Fax: (024)3891320; E-mail: lais imr ac.cn. TEM STUDIES OF GRAIN BOUNDARY BETWEEN MARTENSITE LATHES IN 9Ni STEEL[J]. 金属学报, 1998, 34(6): 565-570.
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MENG Xiangmin; LI Guanglai; ZHANG Futian; WU Yukun (Laboratory of Atomic Imaging of Solids; Institute of Metal Research; Chinese Academy of Scicnces;Shenyang 110015)(Manuscript received 1995－12－14). LOW－ANGLE TILT GRAIN BOUNDARY BETWEEN MARTENSITE LATHES IN 9Ni STEEL[J]. 金属学报, 1996, 32(7): 700-704.
