Chinese Journal of Materials Research  2013, Vol. 27 Issue (5): 449-453    DOI:

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Micro Structures and Properties of the Surface with Electrical Discharge Machining for P20 Steel

ZHANG Xiaoliang1 WANG Zhaoxi2, 3** QU Baoping3 SHI Huiji3

1. Beijing Polytechnic College, Beijing 100042 2. CPI Nuclear Power Research Institute, Beijing 100044 3. Department of the Engineering Mechanics, Tsinghua University, Beijing 100084

ZHANG Xiaoliang, WANG Zhaoxi, QU Baoping, SHI Huiji. Micro Structures and Properties of the Surface with Electrical Discharge Machining for P20 Steel. Chinese Journal of Materials Research, 2013, 27(5): 449-453.

Abstract Related Articles Recommended Metrics Download:  PDF(3879KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The P20 specimens were machined with different electrical discharging currents to investigate the effect of the pulse current on the micro structure and properties of the specimen surface. There are three layers on the specimen surface: ablation layer, molten layer and recrystallized layer. The thickness of the molten layer and recrystallized layer increases with the increment of the pulse current. The content of the oxygen and carbon element on the outside of the molten layer is higher than that in the base metal for the element diffuse during the machining. The micro hardness reduces from the out layer to the base metal for the heat treatment during the discharge machining. Micro fracture is found in the molten layer which is caused by the residual stress during the machining according the finite element analysis. Key words:  metallic materials      die steel      electrical discharge machining      pulse current      micro hardness      residual stress      ZTFLH:  TG484     TG142   Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors ZHANG Xiaoliang WANG Zhaoxi QU Baoping SHI Huiji URL:  https://www.cjmr.org/EN/     OR     https://www.cjmr.org/EN/Y2013/V27/I5/449 [1] MAO Jianjun, FU Tong, PAN Hucheng, TENG Changqing, ZHANG Wei, XIE Dongsheng, WU Lu. Kr Ions Irradiation Damage Behavior of AlNbMoZrB Refractory High-entropy Alloy[J]. 材料研究学报, 2023, 37(9): 641-648. [2] SONG Lifang, YAN Jiahao, ZHANG Diankang, XUE Cheng, XIA Huiyun, NIU Yanhui. Carbon Dioxide Adsorption Capacity of Alkali-metal Cation Dopped MIL125[J]. 材料研究学报, 2023, 37(9): 649-654. [3] ZHAO Zhengxiang, LIAO Luhai, XU Fanghong, ZHANG Wei, LI Jingyuan. Hot Deformation Behavior and Microstructue Evolution of Super Austenitic Stainless Steel 24Cr-22Ni-7Mo-0.4N[J]. 材料研究学报, 2023, 37(9): 655-667. [4] SHAO Hongmei, CUI Yong, XU Wendi, ZHANG Wei, SHEN Xiaoyi, ZHAI Yuchun. Template-free Hydrothermal Preparation and Adsorption Capacity of Hollow Spherical AlOOH[J]. 材料研究学报, 2023, 37(9): 675-684. [5] XING Dingqin, TU Jian, LUO Sen, ZHOU Zhiming. Effect of Different C Contents on Microstructure and Properties of VCoNi Medium-entropy Alloys[J]. 材料研究学报, 2023, 37(9): 685-696. [6] OUYANG Kangxin, ZHOU Da, YANG Yufan, ZHANG Lei. Microstructure and Tensile Properties of Mg-Y-Er-Ni Alloy with Long Period Stacking Ordered Phases[J]. 材料研究学报, 2023, 37(9): 697-705. [7] XU Lijun, ZHENG Ce, FENG Xiaohui, HUANG Qiuyan, LI Yingju, YANG Yuansheng. Effects of Directional Recrystallization on Microstructure and Superelastic Property of Hot-rolled Cu71Al18Mn11 Alloy[J]. 材料研究学报, 2023, 37(8): 571-580. [8] XIONG Shiqi, LIU Enze, TAN Zheng, NING Likui, TONG Jian, ZHENG Zhi, LI Haiying. Effect of Solution Heat Treatment on Microstructure of DZ125L Superalloy with Low Segregation[J]. 材料研究学报, 2023, 37(8): 603-613. [9] LIU Jihao, CHI Hongxiao, WU Huibin, MA Dangshen, ZHOU Jian, XU Huixia. Heat Treatment Related Microstructure Evolution and Low Hardness Issue of Spray Forming M3 High Speed Steel[J]. 材料研究学报, 2023, 37(8): 625-632. [10] YOU Baodong, ZHU Mingwei, YANG Pengju, HE Jie. Research Progress in Preparation of Porous Metal Materials by Alloy Phase Separation[J]. 材料研究学报, 2023, 37(8): 561-570. [11] REN Fuyan, OUYANG Erming. Photocatalytic Degradation of Tetracycline Hydrochloride by g-C3N4 Modified Bi2O3[J]. 材料研究学报, 2023, 37(8): 633-640. [12] WANG Hao, CUI Junjun, ZHAO Mingjiu. Recrystallization and Grain Growth Behavior for Strip and Foil of Ni-based Superalloy GH3536[J]. 材料研究学报, 2023, 37(7): 535-542. [13] LIU Mingzhu, FAN Rao, ZHANG Xiaoyu, MA Zeyuan, LIANG Chengyang, CAO Ying, GENG Shitong, LI Ling. Effect of Photoanode Film Thickness of SnO2 as Scattering Layer on the Photovoltaic Performance of Quantum Dot Dye-sensitized Solar Cells[J]. 材料研究学报, 2023, 37(7): 554-560. [14] QIN Heyong, LI Zhentuan, ZHAO Guangpu, ZHANG Wenyun, ZHANG Xiaomin. Effect of Solution Temperature on Mechanical Properties and γ' Phase of GH4742 Superalloy[J]. 材料研究学报, 2023, 37(7): 502-510. [15] GUO Fei, ZHENG Chengwu, WANG Pei, LI Dianzhong. Effect of Rare Earth Elements on Austenite-Ferrite Phase Transformation Kinetics of Low Carbon Steels[J]. 材料研究学报, 2023, 37(7): 495-501. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed