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Experimental Investigation on Non-destructive Measuring of the Nitriding Thickness of 40Cr Steel by Laser Ultrasonic
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[1]LI Yang,PENG Xiaoyong,LI Dalei,et al.Experimental Investigation on Non-destructive Measuring of the Nitriding Thickness of 40Cr Steel by Laser Ultrasonic[J].Journal of Zhengzhou University (Engineering Science),2020,41(06):7-12.[doi:10.13705/j.issn.1671-6833.2020.04.010]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 41卷 Number of periods: 2020 06 Page number: 7-12 Column: Public date: 2020-12-31
Title:
Experimental Investigation on Non-destructive Measuring of the Nitriding Thickness of 40Cr Steel by Laser Ultrasonic
Author(s):
LI Yang1; 2;  PENG Xiaoyong1; 2;  LI Dalei1; 2;  LU Jinsheng3;  ZOU Yun1; 2
1.School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China; 2.Anti-fatigue Manufacturing Technology Henan Engineering Laboratory, Zhengzhou 450001, China; 3.Zhengzhou Machinery Research Institute Co., Ltd., Zhengzhou 450001, China
Keywords:
laser ultrasonic;  nitriding thickness;  surface waves;  disperse curves
CLC:
-
DOI:
10.13705/j.issn.1671-6833.2020.04.010
Abstract:
The metalloscopy and microhardness method could not meet the needs of whole testing of nitriding thickness of 40Cr steels products. A laser ultrasonic measurement was proposed to measure the nitriding thickness non-destructively through the dispersion of surface waves. Firstly, the surface waves were excited on the 40Cr steels with different nitriding thickness, and then the surface waves were received by laser interferometer. So the signals of surface waves were excited and received contactless. Finally, the disperse curves of surface waves were extracted by 2D-FFT. It was found that the phase velocity of surface waves increased as the nitriding thickness increased. The dispersion of surface waves with low frequencies was higher than that with high frequencies. The velocity of surface waves would not change when the nitriding thickness was higher than 394 μm. The relationship between the disperse curves of surface waves and the nitriding thickness, could be used to measure the nitriding thickness. Therefore, the laser ultrasonic was a feasible method to measure the nitriding thickness of 40Cr steel non-destructively, and it had value in engineering applications.
References:
[1] ZHECHEVA A,SHA W,MALINOV S,et al.Enhancing the microstructure and properties of titanium alloys through nitriding and other surface engineering methods[J].Surface and coatings technology, 2005,200(7):2192-2207.
[2] TONG W P,HAN Z,WANG L M,et al.Low-temperature nitriding of 38CrMoAl steel with a nanostructured surface layer induced by surface mechanical attrition treatment[J].Surface and coatings technology,2008,202(20):4957-4963.
[3] 邹云,桑振宽,李大磊,等.304不锈钢水射流强化工艺的多目标优化设计[J].表面技术,2018,47(2):25-29.
[4] 钟厉,马晨阳,韩西,等.40Cr钢循环离子渗氮工艺及渗层硬度研究[J].表面技术,2017,46(2):154-158.
[5] BAAK N,SCHALDACH F,NICKEL J,et al.Barkhausen noise assessment of the surface conditions due to deep hole drilling and their influence on the fatigue behaviour of AISI 4140[J].Metals, 2018,8(9):720-731.
[6] LIU J,TIAN G Y,GAO B,et al.Domain wall characterization inside grain and around grain boundary under tensile stress[J].Journal of magnetism and magnetic materials, 2019,471:39-48.
[7] DING S,WANG P,LIN Y,et al.Reduction of thermal effect on rail stress measurement based on magnetic Barkhausen noise anisotropy[J].Measurement, 2018,125:92-98.
[8] BOBYLEV S V,OVID′KO I A.Stress-driven migration of deformation-distorted grain boundaries in nanomaterials[J].Acta materialia, 2015,88(15):260-270.
[9] EL RAYES M M,EL-DANAF E A,ALMAJID A A.Characterization and correlation of mechanical,microstructural and ultrasonic properties of power plant steel[J].Materials characterization, 2015,100:120-134.
[10] EL RAYES M M,EL-DANAF E A,ALMAJID A A.Ultrasonic characterization of heat-treatment effects on SAE-1040 and -4340 steels[J].Journal of materials processing technology, 2015,216:188-198.
[11] DU H L,LONSDALE C,OLIVER J,et al.Evaluation of railroad wheel steel with lamellar duplex microstructures using diffuse ultrasonic backscatter[J].Journal of nondestructive evaluation, 2013,32(4):331-340.
[12] SINGER F,KUFNER M.Model based laser-ultrasound determination of hardness gradients of gas-carburized steel[J].NDT & E international, 2017,88:24-32.
[13] SCHNEIDER D,BRENNER B,SCHWARZ T.Characterization of laser hardened steels by laser induced ultrasonic surface waves[J].Journal of nondestructive evaluation, 1995,14(1):21-29.
[14] 中华人民共和国国家质量监督检验检疫总局.钢铁零件 渗氮层深度测定和金相组织检测：GB/T 11354—2005[S].北京：中国标准出版社，2005.
[15] 韩晓辉,李阳,周庆祥,等.兰姆波在搭接焊缝上的干涉[J].机械工程学报,2017,53(10):87-93.
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