Experimental study of magnesium mechanical performance degradation off-line testing using nonlinear ultrasonic - 文章详情页

作者：

Yan, Bing-Sheng (Yan, Bing-Sheng.) | Wu, Bin (Wu, Bin.) | Li, Jia-Rui (Li, Jia-Rui.) | He, Cun-Fu (He, Cun-Fu.) (学者：何存富)

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摘要：

Toward　the　problem　of　the　metal　material　early　degradation　of　mechanical　properties,　the　project　study　measurement　method　of　nonlinearity　parameters,　develop　a　robust　experimental　procedure.　There　is　linear　relationship　between　amplitudes　of　the　second-harmonic　waves　and　the　squared　fundamental　waves　as　a　function　of　increasing　input　voltage　amplitude,　the　experimental　system　is　reliable.　Ultrasonic　nonlinearity　parameters　of　magnesium　samples　with　some　fabricated　degradation　are　measured.　After　the　fatigue　life　of　30%　and　into　plastic　deformation　stage　of　metal　material,　ultrasonic　nonlinearity　parameters　is　sensitive　to　the　degradation　of　mechanical　properties.　β　can　characterize　the　early　degradation　of　mechanical　properties　of　magnesium,　nonlinear　ultrasonic　measurement　has　potentially　engineering　value　for　nondestructive　testing　and　life　prediction　of　mental　materials.

关键词：

Magnesium Mechanical properties Nondestructive examination Ultrasonic testing

作者机构：

[ 1 ] [Yan, Bing-Sheng]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Yan, Bing-Sheng]School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou 450007, China
[ 3 ] [Wu, Bin]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Li, Jia-Rui]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 5 ] [He, Cun-Fu]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China

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