热变形对塑料模具钢SDFT600贝氏体相变的影响

doi:10.13251/j.issn.0254-6051.2022.08.001

金属热处理 ›› 2022, Vol. 47 ›› Issue (8): 1-6.DOI: 10.13251/j.issn.0254-6051.2022.08.001

• 材料研究 • 下一篇

热变形对塑料模具钢SDFT600贝氏体相变的影响

张铮¹, 陈进磊², 张敏¹, 乔珺威¹

1.太原理工大学材料科学与工程学院, 山西太原 030024;
2.太原重工股份有限公司齿轮传动分公司, 山西太原 030024

收稿日期:2022-03-16 修回日期:2022-05-30 出版日期:2022-08-25 发布日期:2022-09-19
作者简介:张铮(1980—),男,讲师,博士,主要研究方向为模具钢,E-mail:zhangzheng1980@126.com。

Effect of thermal deformation on bainite transformation of plastic mould steel SDFT600

Zhang Zheng¹, Chen Jinlei², Zhang Min¹, Qiao Junwei¹

1. School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan Shanxi 030024, China;
2. Gear Transmission Branch of Taiyuan Heavy Industry, Taiyuan Shanxi 030024, China

Received:2022-03-16 Revised:2022-05-30 Online:2022-08-25 Published:2022-09-19

摘要/Abstract

摘要： 利用热模拟试验机、热膨胀仪、扫描电镜等研究了热变形对塑料模具钢SDFT600连续冷却过程贝氏体相变的影响。结果表明,在适用于塑料模具钢模块锻造生产的参数条件下,热变形会促进贝氏体相变。相同连续冷却速率下,动态CCT试样贝氏体开始转变温度高于静态CCT试样,0.5 ℃/s时两者差值达到96 ℃;热变形会降低过冷奥氏体的稳定性,0.5 ℃/s时动态CCT试样的贝氏体含量较高;连续冷却速率小于0.1 ℃/s时,动态CCT试样残留奥氏体含量低于静态CCT试样;热变形条件下试样的硬度均匀性较好,有利于提高大模块的最终质量。

关键词: 塑料模具钢SDFT600, 热变形, 冷却速率, 贝氏体相变

Abstract: Effect of thermal deformation on bainite transformation of plastic mould steel SDFT600 during continuous cooling was analyzed by means of thermal simulation machine, thermal dilatometer, scanning electron microscope, etc. The results show that with the parameters suitable for forging production of large plastic mould steel blocks, thermal deformation promotes bainite transformation. At same continuous cooling rate, the bainite transformation start temperature of dynamic CCT specimen is higher than that of static CCT specimen, at cooling rate of 0.5 ℃/s, the temperature difference reaches 96 ℃. Thermal deformation reduces the stability of retained austenite, and at cooling rate of 0.5 ℃/s, the bainite content of dynamic CCT specimen is higher than that of static CCT specimen. When the continuous cooling rate is less than 0.1 ℃/s, the content of retained austenite of dynamic CCT specimen is lower than that of static CCT specimen. Hardness uniformity under thermal deformation condition is better, which is beneficial to the final quality of mould blocks.

Key words: plastic mould steel SDFT600, thermal deformation, cooling rate, bainite transformation

中图分类号:

张铮, 陈进磊, 张敏, 乔珺威. 热变形对塑料模具钢SDFT600贝氏体相变的影响[J]. 金属热处理, 2022, 47(8): 1-6.

Zhang Zheng, Chen Jinlei, Zhang Min, Qiao Junwei. Effect of thermal deformation on bainite transformation of plastic mould steel SDFT600[J]. Heat Treatment of Metals, 2022, 47(8): 1-6.

参考文献

[1]Firrao D, Matteis P, Scavino G, et al. Relationships between tensile and fracture mechanics properties and fatigue properties of large plastic mould steel blocks[J]. Materials Science and Engineering: A, 2007, 468-470(11/12): 193-200.
[2]Luo Y, Wu X C, Wang H B, et al. A comparative study on non-quenched and quenched prehardened steel for large section plastic mould[J]. Journal of Materials Processing Technology, 2009, 209(14): 5437-5442.
[3]Luo Y, Wu X C, Min Y G, et al. Development of non-quenched prehardened steel for large section plastic mould[J]. Journal of Iron and Steel Research International, 2009, 16(2): 61-67.
[4]张铮, 吴晓春. SDP2新型贝氏体塑料模具钢连续冷却相变与力学性能研究[J]. 热加工工艺, 2019, 48(10): 241-243.
Zhang Zheng, Wu Xiaochun. Study on continuous cooling transformation and mechanical properties of SDP2 new bainite plastic die steel[J]. Hot Working Technology, 2019, 48(10): 241-243.
[5]张铮, 李娜. 贝氏体塑料模具钢SDP1热压缩流动应力及晶粒度的研究[J]. 热加工工艺, 2020, 49(15): 64-67.
Zhang Zheng, Li Na. Study on flow stress and grain size of bainitic plastic die steel SDP1 during hot compression[J]. Hot Working Technology, 2020, 49(15): 64-67.
[6]洪斌, 刘雅政, 周乐育. 变形及冷速对预硬化塑料模具钢P20组织与性能的影响[J]. 金属热处理, 2011, 36(5): 103-106.
Hong Bin, Liu Yazheng, Zhou Leyu. Effect of deformation and cooling rate on microstructure and mechanical properties of P20 pre-hardened plastic mould steel[J]. Heat Treatment of Metals, 2011, 36(5): 103-106.
[7]Zhang R Y, Boyd J D. Bainite transformation in deformed austenite[J]. Metallurgical and Materials Transactions A, 2010, 41(6): 1448-1459.
[8]刘东升, 王国栋, 刘相华, 等. P20钢变形奥氏体连续冷却时的相变规律[J]. 金属学报, 1998, 34(3): 271-277.
Liu Dongsheng, Wang Guodong, Liu Xianghua, et al. Continuous cooling transformation behavior of deformed austenite for plastic die steel P20[J]. Acta Metallurgica Sinica, 1998, 34(3): 271-277.
[9]Chen S P, Rana R, Xiao B, et al. The effects of hot deformation of austenite on the bainite transformation in a Fe-C-Mn-Si-Cr steel[J]. Materials Science Forum, 2018, 941: 486-491.
[10]Sourmail T, Smanio V. Optimisation of the mechanical properties of air cooled bainitic steel components through tailoring of the transformation kinetics[J]. Materials Science and Engineering: A, 2013, 582: 257-261.
[11]Gomez G, Pérez T, Bhadeshia H K D H. Air cooled bainitic steels for strong, seamless pipes Part 1-Alloy design, kinetics and microstructure[J]. Materials Science and Technology, 2009, 25(12): 1502-1507.
[12]WilliamLemos B, Jérémy E, Heiner M, et al. In situ investigation of the bainitic transformation from deformed austenite during continuous cooling in a low carbon Mn-Si-Cr-Mo steel[J]. Metallurgical and Materials Transactions A, 2020, 51: 3627-3637.
[13]Ariza E A, Nishikawa A S, Goldenstein H, et al. Characterization and methodology for calculating the mechanical properties of a TRIP-steel submitted to hot stamping and quenching and partitioning (Q&P)[J]. Materials Science and Engineering: A, 2016, 671: 54-69.
[14]Xie C S, Liu Z D, He X K, et al. Effect of martensite-austenite constituents on impact toughness of pre-tempered MnNiMo bainitic steel[J]. Materials Characterization, 2020, 161: 1-14.
[15]Khlestov V M, Konopleva E V, Mcqueen H J. Kinetics of austenite transformation during thermomechanical processes[J]. Canadian Metallurgical Quarterly, 1998, 37(2): 75-89.

热变形对塑料模具钢SDFT600贝氏体相变的影响

Effect of thermal deformation on bainite transformation of plastic mould steel SDFT600

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