EH47船板钢热加工图的建立

doi:10.13228/j.boyuan.issn0449-749x.20150142

Abstract
Figure/Table
References
Related Citation (15)

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

Abstract The hot deformation characteristics of shipbuilding steel EH47 were studied in hot compression tests by the thermal mechanical simulator with Gleeble-3800. The testing conditions were that the maximum strain was 0.7， the deformation temperatures were 950， 1000， 1050， 1 100 and 1 150 ℃， and the strain rates were 0.1， 0.5， 1， 5 and 10 s－1. The processing map was drawn out based on a series of testing data and formulas. The comparison of microstructures with different compression parameters showed that the best compression parameter was （1 000±10） ℃ with 0.1 s－1， the rate of power dissipation—[η]in this region was greater than 0.62， and the dynamically recrystallized grains were finer. The parameter of instability zone located in 950-1 050 ℃ with 0.5-2 s－1， where less amount of dynamically recrystallized grains appeared and the grain sizes were uneven. Therefore， the instability zone should be avoided during heating processing. The best rolling parameters that the deformation temperature was 1 000 ℃ and the strain rate was 0.1 s－1， were determined with formulas and the best parameters from the processing map.

Key words： shipbuilding steel thermal simulation processing map strain instability zone

Received: 30 March 2015 Published: 29 October 2015

PACS:

TG335.5

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	XUN De-Shun

Cite this article:

XUN De-Shun. Establishment of the hot processing map of shipbuilding steel EH47[J]. Iron and Steel, 2015, 50(11): 93-98.

URL:

http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20150142 OR http://www.chinamet.cn/Jweb_gt/EN/Y2015/V50/I11/93

[1]	黄有林, 王建波, 凌学士, 等.热加工图理论的研究进展[J].材料导报, 2009, S(3):173-176
[1]	黄有林, 王建波, 凌学士, 等.热加工图理论的研究进展[J].材料导报, 2009, S(3):173-176
[2]	卢志江, 杨春光, 王帅, 等.奥氏体抗菌不锈钢的热变形方程及其热加工图[J].钢铁, 2014, 49(5):52-57
[2]	卢志江, 杨春光, 王帅, 等.奥氏体抗菌不锈钢的热变形方程及其热加工图[J].钢铁, 2014, 49(5):52-57
[3]	李佑河, 郝震宇, 张龙, 等.基于热加工图法的热轧棒材表面质量控制[J].钢铁, 2014, 49(10):44-50
[3]	李佑河, 郝震宇, 张龙, 等.基于热加工图法的热轧棒材表面质量控制[J].钢铁, 2014, 49(10):44-50
[4]	Prasad Y V R K.Recent advances in the science of mechanical processing[J].Indian Journal of Technology, 1990, 28(6-8):435-451
[4]	Prasad Y V R K.Recent advances in the science of mechanical processing[J].Indian Journal of Technology, 1990, 28(6-8):435-451
[5]	黄顺喆, 厉勇, 王春旭, 等.与流变失稳准则下钢热加工图的建立与分析[J].钢铁, 2014, 49(7):107-113
[5]	黄顺喆, 厉勇, 王春旭, 等.与流变失稳准则下钢热加工图的建立与分析[J].钢铁, 2014, 49(7):107-113
[6]	周舸, 韩寅奔, 曲敬龙, 等.镍基高温合金不同失稳判据的热加工图[J].东北大学学报自然科学版, 2012, 33(5):702-706
[6]	周舸, 韩寅奔, 曲敬龙, 等.镍基高温合金不同失稳判据的热加工图[J].东北大学学报自然科学版, 2012, 33(5):702-706
[7]	Prasad Y V R K, Gegel H L, Doraivelu S M, et al.Modeling of dynamic material behavior in hot deformation: forging of Ti-6242[J].Metallurgical Transactions A, 1984, 15(10):1883-1892
[7]	Prasad Y V R K, Gegel H L, Doraivelu S M, et al.Modeling of dynamic material behavior in hot deformation: forging of Ti-6242[J].Metallurgical Transactions A, 1984, 15(10):1883-1892
[8]	沈卫国.热力学第二定律所描述的绝对不可逆性的最简动力学模型[J]. [J].区域供热, 2010, 10(2):66-74
[8]	沈卫国.热力学第二定律所描述的绝对不可逆性的最简动力学模型[J]. [J].区域供热, 2010, 10(2):66-74
[9]	鲁世强, 李鑫, 王克鲁, 等.用于控制材料热加工组织与性能的动态材料模型理论及应用[J].机械工程学报, 2007, 43(8):77-85
[9]	鲁世强, 李鑫, 王克鲁, 等.用于控制材料热加工组织与性能的动态材料模型理论及应用[J].机械工程学报, 2007, 43(8):77-85
[10]	李春阳.热加工图绘制新方法及应用研究[D].燕山大学, 2012.
[10]	李春阳.热加工图绘制新方法及应用研究[D].燕山大学, 2012.
[11]	赵德文, 铁维麟.轧制应变速率参数ε的精确计算方法[J].应用科学学报, 1995, 13(1):103-108
[11]	赵德文, 铁维麟.轧制应变速率参数ε的精确计算方法[J].应用科学学报, 1995, 13(1):103-108