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Effect of high-intensity ultrasonic field on process of semi-continuous casting for AZ80 magnesium alloy billets ZHANG Zhi-qiang(张志强), LE Qi-chi(乐启炽), CUI Jian-zhong(崔建忠) Key Laboratory...-intensity ultrasonic field, AZ80 magnesium alloy was semi-continuously cast. The effects of ultrasonic intensity on the as-cast microstructures and mechanical properties were investigated. The results show......
Direct-chilling casting of Mg alloy under electromagnetic and ultrasonic combined field CUI Jian-zhong(崔建忠), ZHANG Zhi-qiang(张志强), LE Qi-chi(乐启炽) Key Laboratory of Electromagnetic... electromagnetic (LFEC) field and ultrasonic (US) field on the microstructures, macrosegregation of alloying elements and the mechanical properties of DC cast AZ80 alloy were studied. The results show that both......
J. Cent. South Univ. (2018) 25: 1285-1294 DOI: https://doi.org/10.1007/s11771-018-3825-5 Effect of ultrasonic field on microstructure and mechanical properties of as-cast 7085 aluminum alloy ZOU... of an ultrasonic field on the microstructure and mechanical properties of 7085 aluminum alloy during solidification was investigated by optical microscopy, Vickers hardness test, tensile test, scanning electron......
of 7050 aluminum alloy ingot in ultrasonic field ZHANG Li-hua(张立华)1, 2, YU Jun(余军)1, 2, ZHANG Xiao-ming(张晓明)1, 2 1. Key Laboratory of Modern Complex Equipment Design and Extreme Manufacturing...-continuous casting were researched, and the effects of casting speed on solidification structure in ultrasonic field were also analyzed. The experiment and simulation results show that the solidification......
In situ (Mg2Si+MgO)/Mg composites fabricated from AZ91-Al2(SiO3)3 with assistance of high-energy ultrasonic field ZHANG Song-li(张松利), ZHAO Yu-tao(赵玉涛), CHEN Gang(陈 刚) School of Materials Science... high-energy ultrasonic field were investigated by XRD, DSC and SEM. The results indicate that the size, morphology and distribution of the in situ Mg2Si particles are greatly optimized......
as the operation frequency field for the ultrasonic motor. Fig.7 Displacement shapes of W2L11 model according to changes in frequency in mode 3 Fig. 8 Relationship between resonance and operation... at frequencies close to the resonance frequency. A frequency field of approximately 10 kHz generating up to 1.5 μm magnitude of displacement is determined to be the operation frequency field of the ultrasonic......
Ultrasonic characterization of modified Cr2O3 coatings by reflection coefficient spectroscopy LI Ji-cheng(李继承)1, LIN Li (林 莉)1, LI Xi-meng(李喜孟)1, LI Guang(李 光)2, LEI Ming-kai(雷明凯)3 1...; Abstract: Pores, microcracks and density of plasma sprayed Cr2O3 coatings before and after high-intensity pulsed ion beam (HIPIB) irradiation were investigated using the ultrasonic......
Ultrasonic echo signal fetures of dissimilar material bonding joints GANG Tie(刚 铁)1, Yasuo TAKAHASHI2 (1. State Key Lab of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China; 2. JWRI, Osaka University, Japan) Abstract: An ultrasonic evaluation method of echo feature of diffusion bond joint between two dissimilar materials is presented. The echo......
on the parameters of the ultrasonic field in the melt, properties of the treated material and its volume and configuration. Based on the previous work, ABDEL-REIHIM and REIF[9] suggested that nucleation... Effect of ultrasonic stirring on temperature distribution and grain refinement in Al-1.65%Si alloy melt LI Jun-wen(李军文)1, 2, T. Momono3, FU Ying(付 莹)1, JIA Zheng(贾 征)1, Y. Tayu3 1. College......
; Abstract: Pulsed ultrasonic field was employed in the melt of the AZ80 magnesium alloy. The effects of pulsed ultrasonic field on microstructure and mechanical properties of AZ80 magnesium alloy were investigated. The results show that the as-cast......