Acta Metall Sin  1998, Vol. 34 Issue (2): 216-220    DOI:

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STUDY OF HYPERFINE-FIELD ON NEW HIGH STRENGTH HIGH FRACTURE TOUGHNESS STEEL G99

GENG Ping;ZENG Meiguang;QIAN Cunfu;CHAO Yuesheng (Sciences College; Northeastern University; Shenyang 110006)

GENG Ping;ZENG Meiguang;QIAN Cunfu;CHAO Yuesheng (Sciences College; Northeastern University; Shenyang 110006). STUDY OF HYPERFINE-FIELD ON NEW HIGH STRENGTH HIGH FRACTURE TOUGHNESS STEEL G99. Acta Metall Sin, 1998, 34(2): 216-220.

Abstract References Related Articles Recommended Metrics Download:  PDF(472KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Variations of hyperfine-field with tempering temperature for high strength high fracture toughness steel G99 were studied by Mossbauer spectroscopy. The precipitation of alloy carbides was observed and analyzed by TEM and EDS. The results show that the distribution ofhyperfine-field and the quality of carbides and austenite within steel G99 vary with increasing tempering temperature. These are mainly caused by the increase of Fe atoms neighboring with Co or Ni, the decrease of Fe atoms neighboring with Cr or Mo, the solution of cementite, the precipitation of alloy carbides and the arising of reverted austenite. The important factors that the steel G99 has superior combinstion of strength and toughness are the precipitation of fine alloy carbides M2C, the arising in small amouats of reverted austenite, and well-distributed Co and Ni atoms in tempered martensite. Key words:  Mossbauer spectrum      hyperfine-field      secondary-hardening      martensite      Received:  18 February 1998      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1998/V34/I2/216 1Garrison W M Jr, Moody N R. Metall Trans, 1987; 18A: 1257 2 Handerhan K J, Garrison W M Jr, Moody N R. Metall Trans A, 1989; 20A: 105 3 Ayer R, Machmeier P M. Metall Trans A, 1993; 24A: 1943 4凌斌,钟平,钟炳文,古宝珠.金属学报,1995;31:A209 (Ling B, Zhong P, Zhong B W, Gu B Z. Acta Metall Sin, 1995; 31: A209) 5李士著,穆斯堡尔谱学方法学与数据处理,兰州:兰州大学出版社,1990:33(Li S.Mossbauer Spectrum Methods and Data Treatment , Langhou:Lanzhou University,Press.1990:33) 6 Mathalone Z, Roy M, Pipman J.J Appl Phys, 1971; 42: 687 7苏杰.冶金工业部钢铁研究总院博士学位论文,1995 (Su J. Doctor thesis, Central Iron & Steel Research Institute, MMI, 1995) 8 Mendis E F, Andesrson L W. Phys Rev Lett, 1967; 19: 1434 9 Shirly D A, Rosenblum S S, Matthias E. Phys Rev, 1968; 170: 363 10Vincze I, Campbell I A.J Phys F: Metal Phys, 1973; 3: 647 [1] WANG Zhoutou, YUAN Qing, ZHANG Qingxiao, LIU Sheng, XU Guang. Microstructure and Mechanical Properties of a Cold Rolled Gradient Medium-Carbon Martensitic Steel[J]. 金属学报, 2023, 59(6): 821-828. [2] CHEN Xueshuang, HUANG Xingmin, LIU Junjie, LV Chao, ZHANG Juan. Microstructure Regulation and Strengthening Mechanisms of a Hot-Rolled & Intercritical Annealed Medium-Mn Steel Containing Mn-Segregation Band[J]. 金属学报, 2023, 59(11): 1448-1456. 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