Transactions of Materials and Heat Treatment

Title：High temperature constitutive model on as-cast rotor steel 30Cr2Ni4MoV based on strain compensation method

Authors：

Unit：

KeyWords：

ClassificationCode：TG316

year,vol(issue):pagenumber：2020,45(11):193-198

Abstract：

The high temperature compression experiment of as-cast 30Cr2Ni4MoV steel was conducted by Gleeble-1500D thermal simulator, and the high temperature thermal deformation behavior of as-cast 30Cr2Ni4MoV steel was investigated under the deformation temperatures of 900-1200 ℃ and the strain rates of 0.001-1 s-1. The experimental results show that the flow stress of material is affected by the deformation temperature, strain rate and strain, and the strain has the greatest influence on the flow stress. Then, based on the traditional Arrhenius constitutive model, the influence of strain on the flow stress is introduced and it is described by a fifth-order polynomial. Furthermore, the constitutive model of as-cast 30Cr2Ni4MoV steel is established based on the strain compensation method. Finally, the accuracy of this model is evaluated by correlation coefficient R and average absolute relative error AARE, and the calculated values of R and AARE are 0.992 and 4.11%, respectively. Thus, it is proved that the modified model has high accuracy in predicting the flow stress of as-cast 30Cr2Ni4MoV steel．

Funds：

国家自然科学基金资助项目（51775361）

赵宇（1996-），男，硕士研究生；E-mail：zy13934038594@163.com；通讯作者：张秀芝（1973-），女，博士，教授 E-mail: zhangxiuzhi@tyust.edu.cn

Reference：

[1]赵文龙, 马庆贤. 30Cr2Ni4MoV钢大型钢锭铸造缺陷状况研究[J]. 大型铸锻件, 2013, (5):35-37,44.

Zhao W L,Ma Q X. Research on casting defects of 30Cr2Ni4MoV heavy steel ingot[J].Heavy Casting and Forging,2013, (5):35-37,44.

[2]宿展宁,党淑娥,何艳，等.铸态30Cr2Ni4MoV钢动态再结晶行为研究[J].大型铸锻件,2015，(1):12-14.

Su Z N, Dang S E, He Y, et al. Research on dynamic recrystallization behavior of ascast 30Cr2Ni4MoV steel[J]. Heavy Casting and Forging, 2015， (1): 12-14.

[3]尹向前,王淑娟,李艳锋,等.TiNiFe形状记忆合金热变形行为的研究[J].稀有金属,2012,36(6):851-857.

Yin X Q, Wang S J, Li Y F,et al. Hot deformation behavior of TiNiFe shape memory alloys[J]. Chinese Journal of Rare Metals, 2012,36 (6): 851-857.

[4]李景丹,刘建生,任树兰.铸态316LN钢基于应变补偿的本构模型[J].锻压技术,2019,44(4):176-181.

Li J D,Liu J S, Ren S L.Constitutive model of cast 316LN steel based on strain compensation [J]. Forging & Stamping Technology, 2019,44 (4): 176-181.

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

[6]张兵,朱乐乐,王快社，等.纯镍的高温塑性变形行为及本构方程[J].稀有金属,2015,39(5):406-413.

Zhang B,Zhu L L,Wang K S,et al. High temperature plastic deformation behavior and constitutive equation of pure nickel [J]. Chinese Journal of Rare Metals, 2015,39 (5): 406-413.

[7]毛欢,韩莹莹.基于应变补偿Arrhenius模型的TC20钛合金本构方程研究[J].铸造技术,2018,39(9):1939-1942，1947.

Mao H,Han Y Y.Study on constitutive equation of TC20 alloy based on straincompensated arrhenius model [J]. Foundry Technology, 2018,39 (9): 1939-1942,1947.

[8]陈学文,王纳纳,皇涛,等.超超临界转子用X12钢高温变形行为及基于应变补偿的本构模型[J].材料热处理学报,2018,39(5):134-140.

Chen X W,Wang N N,Huang T, et al. Hot deformation behavior of X12 steel for ultrasupercritical rotor and its constitutive model based on strain compensation[J].Transactions of Materials and Heat Treatment,2018,39(5):134-140.

[9]蔡志伟,陈拂晓,郭俊卿.AZ41M镁合金热变形行为及本构方程[J].材料热处理学报,2015,36(11):65-71.

Cai Z W,Chen F X,Guo J Q.Hot deformation behavior and constitutive equation of AZ41M mangnesium alloy[J].Transactions of Materials and Heat Treatment,2015,36(11):65-71.

[10]陈刚,陈伟,马力,等.Al-12Zn-2.4Mg-1.2Cu合金流变行为的应变补偿Arrhenius本构模型研究[J].稀有金属材料与工程,2015,44(9):2120-2125.

Chen G,Chen W,Ma L, et al.Straincompensated Arrheniustype constitutive model for flow behavior of Al-12Zn-2.4Mg-1.2Cu alloy[J].Rare Metal Materials and Engineering,2015,44(9):2120-2125.

[11]张龙,王强,杨勇彪,等.铸态稀土镁合金热变形应变补偿型本构模型[J].热加工工艺,2015,44(16):131-134.

Zhang L,Wang Q,Yang Y B,et al.Constitutive model by strain compensation of thermal deformation of AZ80 alloy as cast condition[J].Hot Working Technology,2015,44(16):131-134.

[12]张佳磊,王强,张治民,等.稀土镁合金热变形应变补偿型本构模型[J].热加工工艺,2015,44(10):42-45.

Zhang J L,Wang Q,Zhang Z M,et al.Constitutive model by strain compensation of thermal deformation of AZ80 alloy[J].Hot Working Technology,2015,44(10):42-45.

Service：

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