基于纳米压痕分析的往复扭转载荷下45号钢的力学性能
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摘要
通过自制的原位拉扭-压痕力学性能测试装置,开展了往复扭转后45号钢拉伸力学性能测试。首先,由纳米压痕试验分析并获得了往复扭转后45号钢的力学性能曲线及其弹性模量、硬度、屈服强度和应变硬化指数等参数的变化。然后,通过原位拉伸试验证实了纳米压痕试验计算45号钢力学性能的可行性。结果表明,拉伸试验和压痕试验计算获得的材料力学参数具有很好的一致性。本文通过原位图像,还进一步分析了材料在往复扭转载荷下的损伤机理,证实了试验结论的正确性,为通过纳米压痕试验获取服役状态下材料力学性能提供了试验依据。
The tensile properties of 45 steel after reciprocating torsion are tested by self-made in-situ tension-torsion-nanoindentation mechanical testing device.In this study, the mechanical properties curve of 45 steel after reciprocating torsion and the changes of its elastic modulus, hardness, yield strength and strain hardening exponent are obtained by Nano indentation test. The feasibility of calculating the mechanical properties of 45 steel by Nano indentation test is confirmed by in-situ tensile test. The mechanical parameters obtained by tensile test and indentation test are in good agreement. The damage mechanism of materials under reciprocating torsional loads is further analyzed by in-situ images, and the correctness of the experimental results is confirmed. The experimental basis is provided for obtaining the mechanical properties of materials by nanoindentation test in service.
The tensile properties of 45 steel after reciprocating torsion are tested by self-made in-situ tension-torsion-nanoindentation mechanical testing device.In this study, the mechanical properties curve of 45 steel after reciprocating torsion and the changes of its elastic modulus, hardness, yield strength and strain hardening exponent are obtained by Nano indentation test. The feasibility of calculating the mechanical properties of 45 steel by Nano indentation test is confirmed by in-situ tensile test. The mechanical parameters obtained by tensile test and indentation test are in good agreement. The damage mechanism of materials under reciprocating torsional loads is further analyzed by in-situ images, and the correctness of the experimental results is confirmed. The experimental basis is provided for obtaining the mechanical properties of materials by nanoindentation test in service.
引文
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[2]周海波,朱晓勇,郑玉春,等.45钢螺栓断裂失效分析[J].金属热处理,2009,34(12):107-109.Zhou Hai-bo,Zhu Xiao-yong,Zheng Yu-chun,et al.Fracture analysis of 45 steel bolt[J].Heat Treatment of Metals,2009,34(12):107-109.
[3]王长健.45钢锥套淬火裂纹失效分析[J].金属热处理,2017,42(4):204-207.Wang Chang-jian.Failure analysis on quenching cracks of 45 steel taper sleeve[J].Heat Treatment of Metals,2017,42(4):204-207.
[4]朱萍.GH4169盘件径轴向裂纹无损检测方法研究[D].哈尔滨:哈尔滨工业大学材料科学工程学院,2017.Zhu Ping.Research on nondestructive inspecting method for radial-axial crack of GH4169 disk[D].Harbin:College of Materials Science and Engineering,Harbin Institute of Technology,2017.
[5]Oliver W C,Pharr G M.An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments[J].Journal of Mmaterials Research,1992,7(6):1564-1583.
[6]Oliver W C,Pharr G M.Measurement of hardness and elastic modulus by instrumented indentation:advances in understanding and refinements to methodology[J].Journal of Materials Research,2004,19(1):3-20.
[7]De Bono D M,London T,Baker M,et al.A robust inverse analysis method to estimate the local tensile properties of heterogeneous materials from nanoindentation data[J].International Journal of Mechanical Sciences,2017,123:162-176.
[8]Choi Y,Choo W Y,Kwon D.Analysis of mechanical propertydistributioninmultiphaseultra-fine-grained steels by nanoindentation[J].Scripta Materialia,2001,45(12):1401-1406.
[9]Das G,Das M,Sinha S,et al.Characterization of cast stainless steel weld pools by using ball indentation technique[J].Materials Science and Engineering A,2009,389-393:513-514.
[10]Ming Dao,Nuwong Chollacoop,Van Vliet K J,et al.Computational modeling of the forward and reverse problems in instrumented sharp indentation[J].Acta Materialia,2001,49(19):3899-3918.
[11]Fernandes J V,Chaparro B M,Antunes J M,et al.A new approach for reverse analyses in depth-sensing indentation using numerical simulation[J].Acta Materialia,2007,55:69-81.
[12]Cheng G,Zhang F,Ruimi A,et al.Quantifying the effects of tempering on individual phase properties of DP980 steel with nanoindentation[J].Materials Science and Engineering:A,2016,667:240-249.
[13]申宇,张珂,岑风,等.IF钢晶界的微观力学性能及其对宏观力学性能的影响[J].机械工程材料,2018,42(2):31-34.Shen Yu,Zhang Ke,Qin Feng,et al.Micro-mechanical properties at grain boundaries of IF steel and their effect on macro-mechanical properties[J].Materials for Mechanical Engineering,2018,42(2):31-34.
[14]张东生,李新涛,夏汇浩,等.纳米压痕技术表征T800碳纤维的弹性模量和硬度[J].宇航材料工艺,2017,47(4):79-85.Zhang Dong-sheng,Li Xin-tao,Xia Hui-hao,et al.Characterization of elastic modulus and hardness of T800 carbon fiber via nanoindentation technique[J].Aerospace Materials&Technology,2017,47(4):79-85.
[15]陈今龙,周素洪,叶兵,等.纳米压痕表征技术的应用与发展[J].热加工工艺,2018,47(16):13-17.Chen Jin-long,Zhou Su-hong,Ye Bing,et al.Application and development of nanoindentation characterization technology[J].Hot Working Technology,2018,47(16):13-17.
[16]Diez-Pascual Ana M,Gómez-Fatou Marián A,Ania.Nanoindentation in polymer nanocomposites[J].Progress in Materials Science,2015,67:1-94.
[17]Chen Ling,Ahadi Aylin,Zhou Jin-ming.Quantitative study of roughness effect in nanoindentation on AISI316L based on simulation and experiment[J].Proceedings of the Institution of Mechanical Engineers,Part C:Journal of Mechanical Engineering Science,2016,231(21):4067-4075.
[18]Nobuyuki Ishikawa,Kyono Yasuda,Hitoshi Sueyoshi,et al.Microscopic deformation and strain hardening analysis of ferrite-bainite dual-phase steels using microgrid method[J].Acta Materialia,2015,97:257-268.
[19]马亚鑫,高怡斐,曾雨吟,等.利用纳米压痕表征高铁车轮微观相的力学性能[J].材料导报,2015,29(6):102-106.Ma Ya-xin,Gao Yi-fei,Zeng Yu-yin,et al.Characterizing mechanical properties of micro-phases in highspeed railway wheel steel by nano-indentation[J].Materials Review,2015,29(6):102-106.
[20]梁文,吴润,胡俊,等.显微组织对FB60钢板延伸凸缘性能的影响[J].上海金属,2018,40(4):22-28.Liang Wen,Wu Run,Hu Jun,et al.Effect of microstructure on strength-flange-formability of FB60 steel plate[J].Shanghai Metals,2018,40(4):22-28.