Acta Metall Sin  1987, Vol. 23 Issue (2): 103-110    DOI:

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INFLUENCE OF FERRITE-MARTENSITE MICROSTRUCTURE ON STRENGTH AND STRAIN HARDENING BEHAVIOR OF 12CrMo STEEL ANALYSED WITH FINITE ELEMENT METHOD

LI Zhonghua; WANG Yonglan; LVO Jinghua; KUANG Zhenbang; SHAO Tanhua; ZHOU Huijiu (Xi'an Jiaotong University) (Manuscript received 12 May; 1985; revised manuscript 5 May; 1986)

LI Zhonghua; WANG Yonglan; LVO Jinghua; KUANG Zhenbang; SHAO Tanhua; ZHOU Huijiu (Xi'an Jiaotong University) (Manuscript received 12 May; 1985; revised manuscript 5 May; 1986). INFLUENCE OF FERRITE-MARTENSITE MICROSTRUCTURE ON STRENGTH AND STRAIN HARDENING BEHAVIOR OF 12CrMo STEEL ANALYSED WITH FINITE ELEMENT METHOD. Acta Metall Sin, 1987, 23(2): 103-110.

Abstract References Related Articles Recommended Metrics Download:  PDF(1887KB)  Export:  BibTeX | EndNote (RIS)       Abstract  An elastic-plastic axisymmetric increment finite element program based on f inite deformation theory has been applied to calculate the stress-strain curves of 12CrMo ferrite-martensite steel with different martensite contents The fraction and shape of martensite in the finite element meshes should be the same as those in actual materials. The calculated stress-strain curves are consistent with experimental ones. The flow stresses at low strain stage are directly proportional to the martensite content, but at high strain stage, the effect of martensite content dies down. The strength of the steel increases slightly with decreasing martensite size. When the martensite content is 50%, the strength of steel becomes higher than that of those with ferrite matrix. At uniform strain stage, the calculate stress-strain curves on Log-Log scales show two straight lines with slopes n_1 and n_2. The strain hardening exponent n_1 at the first strain hardening stage is sensitive to the character of matrix, while n_2 at the second stage is sensitive to that of particle phase. Received:  18 February 1987      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/Y1987/V23/I2/103 1 Fischmeister H, Hjalmered J O, Karlsson B, Linden G, Sunderstroem B. In: Proc. Third Int., Conf. Strength of Metals & Alloys, Inst. of Metals and Iron & Steel Inst., Vol. 1． Cambridge & London, 1973; 1: 621 2 Karlsson B, Sundstroem B O. Mater Sci Eng 1974; 16: 161 3 Ankem S, Margolin H. Metall Trans A 1982; 13: 595 4 殷家驹,嵇醒,汤泉.西安交通大学学报,1982;16(2) :29 5 李中华,刘艾,周惠久,匡震邦.金属学报,1986;22:A321 6 黄明志,骆竞晞,贺保平.金属学报,1983;19:A29 No related articles found! No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed