Transactions of Materials and Heat Treatment

Title：High temperature plastic deformation behavior and constitutive equation establishment of 35CrMoV steel

Authors：

Unit：

KeyWords：

ClassificationCode：TG111.7

year,vol(issue):pagenumber：2021,46(3):216-220

Abstract：

In order to study the high temperature plastic deformation behavior of 35CrMoV steel, the axial single pass high temperature compression test was conducted by thermal simulator Gleelble 3800 at the strain rates of 0.01-10 s-1 and the deformation temperatures of 950-1150 ℃, and the rheological stress-strain curves of 35CrMoV steel were drawn according to test results. Then, the influences of deformation temperature and strain rate on the rheological stress were studied, and the deformation activation energy Q and the parameters of n, A and α were calculated. The test results show that when 35CrMoV steel is subjected to compression test at 950-1150 ℃, there are two kinds of rheological stress-strain relationships for dynamic recrystallization and dynamic recovery. When the strain rates are 0.01 and 0.1 s-1, the rheological stress-strain curvess are mainly of dynamic recrystallization type, and when the strain rates are 1 and 10 s-1, the rheological stress-strain curves are mainly of dynamic recovery type. In addition, under the test conditions, the average deformation activation energy Q of 35CrMoV steel is 310.433 kJ·mol-1, and the constitutive equation is established to describe the relationship among rheological stress, strain rate and deformation temperature of 35CrMoV steel.

Funds：

伦建伟（1982-），男，硕士，工程师 E-mail：lunjianwei123@163.com

Reference：

[1]张冬旭, 温志勋, 岳珠峰. GH3230高温合金热变形行为及本构模型研究[J]. 稀有金属, 2014, 38(6): 986-992.

Zhang D X, Wen Z X, Yue Z F. Hot deformation behavior and constitutive model of GH3230 alloy[J]. Chinese Journal of Rare Metals, 2014, 38 (6): 986-992.

[2]Wang H, Dai W, Hewavitharana L G. A finite difference method for studying thermal deformation in a double-layered thin film with imperfect interfacial contact exposed to ultrashort pulsed lasers[J]. International Journal of Thermal Sciences, 2008, 47(1): 7-24.

[3]肖文近, 付甲, 陈晓燕. 铸态42CrMo钢热压缩本构模型的建立[J]. 热加工工艺, 2011, 40(9): 105-107.

Xiao W J, Fu J, Chen X Y. Establishment of constitutive model for as-cast 42CrMo steel during hot compression deformation[J]. Hot Working Techonology, 2011, 40(9): 105-107.

[4]龚志华, 何禛, 包汉生, 等. 2Cr12NiMo1W1V超临界汽轮机叶片用耐热钢的热变形行为[J]. 钢铁, 2019, 54(3): 63-68.

Gong Z H, He Z, Bao H S, et al. Hot deformation behavior of 2Cr12NiMo1W1V heat resistant steel used for supercritical steam turbine blades[J]. Iron and Steel, 2019, 54(3): 63-68.

[5]孙朝阳, 李亚民, 祥雨, 等. 316LN高温热变形行为与热加工图研究[J]. 稀有金属材料与工程, 2016, 45(3): 688-695.

Sun C Y, Li Y M, Xiang Y, et al. Hot deformation behavior and hot processing maps of 316LN stainless steel[J]. Rare Metal Materials and Engineering, 2016, 45(3): 688-695.

[6]Sellars C M, Mctegart W J. On the mechanism of hot deformation[J]. Acta Metallurgica Sinica, 1966, 14(9): 1136-1138.

[7]Zener C, Hollomon J H. Effect of strain-rate upon the plastic flow of steel[J]. Journal of Physics D-Applied Physics, 1944,15(1): 22-32.

[8]Poirier J P. 晶体的高温塑性变形[M]. 关德林, 译. 大连: 大连理工大学出版社, 1989.

Poirier J P. High Temperature Plastic Deformation of Crystal[M]. Translated by Guan D L. Dalian: Dalian University of Technology Press, 1989.

[9]苏新生, 徐文帅, 黄顺喆, 等. 40CrNi2MoE钢的高温塑性变形特征[J]. 机械工程材料, 2015, 39(6): 90-94.

Su X S, Xu W S, Huang S Z, et al. Hot plastic deformation characteristics of 40CrNi2MoE steel [J]. Materials for Mechanical Engineering, 2015,39(6): 90-94.

[10]王志蒙, 王玉辉, 曹文全, 等. GCr15轴承钢热变形行为及加工图[J]. 材料热处理学报, 2017, 38(1): 191-197.

Wang Z M, Wang Y H, Cao W Q, et al. Hot deformation behavior and processing maps of GCr15 bearing steel [J]. Transactions of Materials and Heat treatment, 2017, 38(1): 191-197.

[11]孔得磊, 雷丽萍, 曾攀. 40Mn钢热变形行为及加工图研究[J].锻压技术，2019 ,44(3):122-132.

Kong D L，Lei L P，Zeng P. Research on hot deformation behavior and processing map for 40Mn steel[J].Forging & Stamping Technology，2019 , 44(3):122-132.

[12]张雪敏, 曹福洋, 岳红彦, 等. TC11钛合金热变形本构方程的建立[J]. 稀有金属材料与工程, 2013, 45(5): 937-941.

Zhang X M, Cao F Y, Yue H Y, et al. Establishment of constitutive equations of TC11 alloy during hot deformation[J]. Rare Metal Materials and Engineering, 2013, 45(5): 937-941.

Service：

【This site has not yet opened Download Service】【Add Favorite】