900 MPa级析出强化钢高温变形行为

doi:10.13228/j.boyuan.issn0449-749x.20140177

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (0 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract Dealing with the 900 MPa grade hot rolled steel with precipitation strengthening, the hot deformation behavior was investigated with a compression test on Gleeble-3800 simulator with a temperature range of 950－1 150 ℃ and strain rate range of 0.01-10.0 s-1. The accurate values of peak stress were obtained from the stress-strain curve. A hyperbolic sine equation was employed to describe the relationship between the peak stress and Zener-Hollomon parameter, in which the activation energy of deformation and other constants were obtained using regression analysis. The flow stress constitutive equation by hot compression was obtained and it was tested and verified. The results show that the flow stress predicted by the proposed models agrees well with the experimental results．This can provide reference for the limited load during the process of forming and for the choosing of equipment.

Key words： 900MPa grade steel hot deformation behavior flow stress hyperbolic sine constitutive equation precipitation strengthening.

Received: 27 March 2014 Published: 12 January 2015

PACS:

TG142

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	DIAO Pei-Lin
	DONG Hong-Zhuang
	YU Jin-Hong
	ZHANG Li-Beng
	HAO Shuai
	LIU Mao-Sheng

Cite this article:

DIAO Pei-Lin,DONG Hong-Zhuang,YU Jin-Hong等. Hot deformation behaviors of 900 MPa grade precipitation strengthening steel[J]. Iron and Steel, 2015, 50(1): 61-65.

URL:

http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20140177 OR http://www.chinamet.cn/Jweb_gt/EN/Y2015/V50/I1/61

[1]	姚连登, 赵四新, 赵小婷等.直接淬火研制级低焊接裂纹敏感性高强钢厚板[J].材料热处理可学报, 2009, 30(3):132-136
[1]	姚连登, 赵四新, 赵小婷等.直接淬火研制级低焊接裂纹敏感性高强钢厚板[J].材料热处理可学报, 2009, 30(3):132-136
[2]	Nagao A, Ito T, Obinata T.Development of YP 960 and 1100MPa class ultra-high strength steel plates with excellent toughness and high resistance to delayed fracture for construction and industrial machinery[J][J].JFE Tech Rep, 2008, -(11):13-18
[2]	Nagao A, Ito T, Obinata T.Development of YP 960 and 1100MPa class ultra-high strength steel plates with excellent toughness and high resistance to delayed fracture for construction and industrial machinery[J][J].JFE Tech Rep, 2008, -(11):13-18
[3]	雍岐龙; 董瀚; 刘正东等.先进机械制造用结构钢的发展[J].金属热处理, 2010, 30(1):1-6
[3]	雍岐龙; 董瀚; 刘正东等.先进机械制造用结构钢的发展[J].金属热处理, 2010, 30(1):1-6
[4]	牛济泰．材料和热加工领域的物理模拟技术[M]．北京：国防工业出版社，1999：149．
[4]	牛济泰．材料和热加工领域的物理模拟技术[M]．北京：国防工业出版社，1999：149．
[5]	陆匠心．700MPa级高强度微合金钢生产技术研究[D]．东北大学，2005：53-58．
[5]	陆匠心．700MPa级高强度微合金钢生产技术研究[D]．东北大学，2005：53-58．
[6]	Sellars C.M.,Tegart WJ. McG. On the mechanism of hot deformation[J].Acta Metallurgical, 1966, 14(9):1136--
[6]	Sellars C.M.,Tegart WJ. McG. On the mechanism of hot deformation[J].Acta Metallurgical, 1966, 14(9):1136--
[7]	Jonas J.J.,Sellars CM.,Tegart W. J. McG. Strength and structure under Hot-Working conditions[J].Metal Reviews, 1969, 14(130):1--
[7]	Jonas J.J.,Sellars CM.,Tegart W. J. McG. Strength and structure under Hot-Working conditions[J].Metal Reviews, 1969, 14(130):1--
[8]	Sellars C.M.,Tegart WJ. McG. Hot workability[J].International Metallurgical Reviews, 1972, 17(158):1--
[8]	Sellars C.M.,Tegart WJ. McG. Hot workability[J].International Metallurgical Reviews, 1972, 17(158):1--
[9]	Zener C.Hollomon JH.. Effect of strain rat upon the plastic of steel[J].J. Appl. Phys, 1944, 15(1):22-27
[9]	Zener C.Hollomon JH.. Effect of strain rat upon the plastic of steel[J].J. Appl. Phys, 1944, 15(1):22-27
[10]	Medina S.F.,Hernandez CA.. General expression of Zener-Hollomon parameter as a function of the chemical composition of low alloy and microalloy steels[J].Acta. Mater, 1996, 44(1):137-140
[10]	Medina S.F.,Hernandez CA.. General expression of Zener-Hollomon parameter as a function of the chemical composition of low alloy and microalloy steels[J].Acta. Mater, 1996, 44(1):137-140