Transactions of Materials and Heat Treatment

Title：Static recrystallization behavior for cast steel 30Cr2Ni4MoV

Authors： Xu Yue Jiao Yongxing Liu Jiansheng

Unit： Taiyuan University of Science and Technology

KeyWords： cast steel 30Cr2Ni4MoV static recrystallization microstructure kinetic model grain size model

ClassificationCode：TG316

year,vol(issue):pagenumber：2018,43(7):197-203

Abstract：

By means of double-pass thermal compression test, the static recrystallization softening behavior of cast steel 30Cr2Ni4MoV during the high temperature deformation was studied by the Gleeble-1500D thermosimulation machine, and the influences of different process parameters, such as deformation temperature, initial grain size and interval time of each pass, on the static softening behavior of cast steel 30Cr2Ni4MoV were analyzed based on the test results. Then, the kinetic model and grain size model for the static recrystallization of the cast material were established, and the activation energy of recrystallization for the cast material was obtained as 207.39 kJ·mol-1. The results show that the volume fraction of static recrystallization for the cast material increases with the increasing of deformation temperature, strain, strain rate and interval time of each pass. But it is almost unaffected by the initial grain size. The accuracy of the model is verified by comparing the test values obtained from thermal compression with the calculated values of the model.

Funds：

国家自然科学基金资助项目（51275330）

徐月（1993-），女，硕士研究生，E-mail：1776427955@qq.com；通讯作者：刘建生（1958-），男，博士，教授，博士生导师，E-mail：jiansliu@163.com

Reference：

[1]李翠冬,崔振山, 陈飞. 30Cr2Ni4MoV加热过程的晶粒长大模型及其在大锻件加热制度中的应用[J]. 塑性工程学报, 2013, 20(4):38-41.

Li C D, Cui Z S, Chen F. Austenite grain model for 30Cr2Ni4MoV steel during heating process and its application in heating specification for heavy forging[J]. Journal of Plasticity Engineering,2013, 20(4):38-41.

[2]任树兰, 刘建生, 李景丹,等. 316 LN钢ESR材料热变形行为及高温塑性本构方程[J]. 锻压技术, 2017, 42(10):162-165.

Ren S L, Liu J S, Li J D, et al.Thermal deformation behavior and high temperature plastic constitutive equation of ESR steel 316LN[J].Forging & Stamping Technology,2017,42(10):162-165.

[3]陈飞, 刘建生, 马越, 等. 30Cr2Ni4MoV低压转子钢的静态再结晶行为[J]. 塑性工程学报, 2016, 23(6):151-156.

Chen F, Liu J S, Ma Y, et al. Static recrystallization behavior of 30Cr2Ni4MoV lowpressure rotor steel[J]. Journal of Plasticity Engineering,2016, 23(6):151-156.

[4]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.

[5]马越, 刘建生. 30Cr2Ni4MoV钢动态再结晶及微观组织演变研究[J]. 锻压技术, 2016, 41(3):129-133.

Ma Y, Liu J S. Research on dynamic recrystallization behavior and microstructure evolution of steel 30Cr2Ni4MoV[J].Forging & Stamping Technology,2016,41(3):129-133.

[6]曹志远，季雪，程幸叶, 等.30Cr2Ni4MoV钢的动态软化机制分析[J].大型铸锻件，2011，(3): 19-22.

Cao Z Y, Ji X, Chen X Y, et al. Analysis on dynamic softening mechanism of 30Cr2Ni4MoV steel[J].Heavy Casting and Forging, 2011, (3): 19-22.

[7]刘鑫，钟约先，马庆贤,等.30Cr2Ni4MoV钢多道次变形条件下的动态再结晶行为[J].塑性工程学报，2010，17(2):115-119.

Liu X, Zhong Y X, Ma Q X, et al. Research on the dynamic recrystallization behavior of 30Cr2Ni4MoV LP rotor steel under multi-pass deformation[J].Journal of Plasticity Engineering, 2010, 17(2):115-119.

[8]李佳, 张秀芝, 刘建生. 低合金钢Q345E静态再结晶模型研究[J]. 大型铸锻件, 2014, (1):14-16.

Li J, Zhang X Z, Liu J S. Static recrystallization models of low-alloy Q345E steel[J]. Heavy Casting and Forging, 2014, (1):14-16.

[9]Lan L Y, Qiu C L, Zhao D W, et al.Dynamic and static recrystallization behavior of low carbon high niobium microalloyed steel[J].Journal of Iron and Steel Research,2011,18(1): 55-60.

[10]Cho S H, Kang K B, Jonas J J, et al. Effect of manganese on recrystallization kinetics of niobium microalloyed steel[J]. Materials Science and Technology, 2002, 18(3): 389-395.

[11]Sellars C M，Tagartw J.Study on themechanism of hot deformation[J].Acta Metall.，1966，14(11):1136-1138.

Service：

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