| Metals and Metal Matrix Composites |
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| Evaluation of Mechanical Property of 24CrNi Alloy Steel Using Reconstituted Hysteresis Loops Parameters Using Magnetic Barkhausen Noise |
| LYU Ruiyang1, 2, SONG Kai2, DONG Shiyun2, MEN Ping2, KANG Xueliang2, YAN Shixing2, LIU Xiaoting2
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1 Key Laboratory of Nondestructive Testing of Ministry of Education, Nanchang Hangkong University, Nanchang 330063, China
2 National Key Laboratory for Remanufacturing, Army Academy of Armored Force, Beijing 100072, China |
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Abstract To estimating the uniformity of microstructures and the mechanical properties of alloy steel quickly, quantitatively and non-destructively, a comprehensive evaluation of the reconstituted hysteresis characteristic parameters based on the magnetic Barkhausen noise non-destructive testing method was conducted. The low-frequency sine wave was used as the excitation signal to analyze the mapping relation between the reconstituted hysteresis parameters of the magnetic Barkhausen noise signal and the hardness, tensile strength-microstructure of the alloy steel. The calibration model for quantitative evaluation of the strength of alloy steel was carried out, and the calibration model was verified. The research shows that the reconstituted residual magnetism, reconstituted hysteresis loss can be used as quantitative parameters to predict the hardness as well as tensile strength of alloy steel specimens,the prediction error of calibrated model will increase while the constituted parameters exceed the specific interregion. The reconstituted coercivity and reconstituted maximum magnetic permeability cannot be used to predict the hardness and tensile strength of alloy steel but can be used as an important reference for material microstructure uniformity of alloy steel.
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Published: 14 July 2020
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| Fund:This work was financially supported by the National Key Research and Development Program of China(2016YFB1100205),National Natural Science Foundation of China(51865033). |
About author:: Ruiyang Lyureceived his B. S. degree from Nanjing University Jinling College in 2015. Now he is M. S. candidate in Key Laboratory of Nondestructive Testing of Ministry of Education, Nanchang Hangkong University. His main research interests include electromagne-tic testing technology and nondestructive testing (eva-luation of material mechanical properties.
Shiyun Dongreceived his B. S., M. S. and Ph. D. degrees all from Harbin Institute of Technonolgy in 1995, 1997 and 2000, respectively. Now, he is a research fellow in National Key Laboratory for Remanufacturing, Academy of Armored Forces Engineering. His main research interests include surface engineering, laser manufacturing and remanufacturing technology and quality nondestructive testing & evaluation. |
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2020, Vol. 34 
