Effects of magnetic field and electric current on the solidification of AZ91D magnesium alloys using an electromagnetic vibration technique

Li, Mingjun; Tamura, Takuya; Omura, Naoki; Miwa, Kenji

doi:10.1016/j.jallcom.2009.08.045

Cited by 48 publications

(16 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, the refinement of microstructure mainly has the following methods, such as chemical elements modification [9][10][11], electromagnetic vibration [12], ultrasonic vibration [13], and mechanical vibration [14]. The mechanical vibration has the potential to be a simple, economic, and effective method to refine microstructure and improve mechanical properties [15,16], which was first applied on the steel by Chernov [17].…”

Section: Introductionmentioning

confidence: 99%

Effects of vibration frequency on microstructure, mechanical properties, and fracture behavior of A356 aluminum alloy obtained by expendable pattern shell casting

Jiang

Wang

et al. 2015

Int J Adv Manuf Technol

View full text Add to dashboard Cite

A simple, economic, and effective mechanical vibration method was introduced into the solidification process of A356 aluminum alloy during the expendable pattern shell casting process, and the effects of vibration frequency on microstructure, mechanical properties, and fracture behavior of the A356 alloy were investigated. Obtained results showed that the sizes and morphologies of α-Al primary phase and eutectic silicon particles were significantly improved by the mechanical vibration, and the mechanical properties and density of the A356 alloy greatly increased. With increasing vibration frequency, the grain size and secondary dendrite arm spacing (SDAS) continuously decreased, and the shape factor increased, and the mechanical properties and density of the A356 alloy gradually increased. With a vibration frequency of 100 Hz, the grain size and SDAS decreased by 32 and 19 %, respectively, and the shape factor increased by 262 %, and the average length, width, and aspect ratio of the silicon particles decreased by 45, 6, and 42 %, respectively, compared to that of the sample without vibration. Meanwhile, the tensile strength, yield strength, elongation, and hardness of the A356 alloy sample were, respectively, 35, 42, 57, and 28 % higher than those of the sample without vibration. In addition, the mechanical vibration changed the fractograph of the A356 alloy from a clear brittle fracture nature of the alloy without vibration to an obvious dimple fracture nature, and with the increase of vibration frequency, the dimples were very deep and well distributed with a high density.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of vibration frequency on microstructure, mechanical properties, and fracture behavior of A356 aluminum alloy obtained by expendable pattern shell casting

Jiang

Wang

et al. 2015

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

“…Ross et al [7] reported that an electric current can dramatically improve the formability of Ti-6Al-4 V alloy. Li et al [8] found that the average grain size of AZ91D magnesium alloy fabricated through electromagnetic vibration technique decreases first and then increases with the increase of electric current intensity. Ma et al [9] obtained the fine equiaxed grains of pure Al by applying electric current pulse.…”

Section: Introductionmentioning

confidence: 99%

Co-effect of heat and direct current on growth of intermetallic layers at the interface of Ti–Ni diffusion couples

Zhou

Wang

Sun

et al. 2011

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…Vigorous sparking and gas evolvement at excessive high current density often result in poor anodized coating [24][25][26][27], while too low anodizing current density will make the formation of anodized films unachievable [28].…”

Section: Anodized Growth Processmentioning

confidence: 99%

Environmental friendly anodizing of AZ91D magnesium alloy in alkaline borate–benzoate electrolyte

Liu

Wei

Yang

et al. 2011

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Effects of magnetic field and electric current on the solidification of AZ91D magnesium alloys using an electromagnetic vibration technique

Cited by 48 publications

References 20 publications

Effects of vibration frequency on microstructure, mechanical properties, and fracture behavior of A356 aluminum alloy obtained by expendable pattern shell casting

Effects of vibration frequency on microstructure, mechanical properties, and fracture behavior of A356 aluminum alloy obtained by expendable pattern shell casting

Co-effect of heat and direct current on growth of intermetallic layers at the interface of Ti–Ni diffusion couples

Environmental friendly anodizing of AZ91D magnesium alloy in alkaline borate–benzoate electrolyte

Contact Info

Product

Resources

About