“…These factors cause the iron slag particles to fragment and acquire a more uniform shape with reduced particle size, thereby facilitating water drainage from the pores. Consequently, the dehydration performance of iron slag has been significantly enhanced [32] , [33] , [34] . Fig.…”
“…These factors cause the iron slag particles to fragment and acquire a more uniform shape with reduced particle size, thereby facilitating water drainage from the pores. Consequently, the dehydration performance of iron slag has been significantly enhanced [32] , [33] , [34] . Fig.…”
“…By taking advantage of cavitation and acoustic streaming effects, ultrasonic-assisted brazing (UAB) technology can improve the wettability of filler alloy on materials with poor wettability at lower temperatures [18]. Huang et al [19] applied the ultrasonic-assisted induction heating method, which promoted the shear strength of the welded joint between diamond and 1045 steel greatly and reduced the residual compressive stress.…”
Ultrasonic-assisted brazing (UAB) technology has been introduced to prepare the diamond/AlSi composite coating on Ti-6Al-4V substrate. The microstructure and wear properties of the coating were studied. The results showed that AlSi filler metal had a certain spreading and climbing phenomenon on the diamond surface, indicating a significant improvement in wettability between AlSi filler metal and diamond by ultrasonic-assisted brazing. Under ultrasound action, the microstructure of AlSi brazing alloy was greatly refined, and the Ti atoms in the Ti-6Al-4V substrate diffused to the interface between diamond and AlSi brazing alloy and formed TiC on diamond particles. There was no thermal damage to diamond particles when the brazing temperature was 750 °C. UAB improved the microhardness of the coating alloy matrix due to the increasing quantity and distribution range of TiAl3 as reinforced particles but had no obvious effect on the microhardness of the Ti-6Al-4V substrate. The wear resistance of Ti-6Al-4V substrate with diamond/AlSi composite coating was promoted due to the dense diamond particles, the formed TiC on diamond particles, and the increase in microhardness of the alloy matrix of diamond/AlSi coating under ultrasound action.
“…Meanwhile, as a thermal barrier, zirconia is frequently bonded with Ti-6Al-4V to manufacture some complex parts used in aircraft turbines. Therefore, joining Ti-6Al-4V and ZrO2 properly are crucial to achieve excellent joints (C. Zhang et al, 2020).…”
This article studies the free vibration responses of functionally graded material (FGM) porous nanoplates exposed to thermal load. The developed mathematical model includes a shear deformation, size-scale, and microstructure influence by a high-order shear deformation (HSDT) and nonlocal strain gradient (NGST) theories. The study considers four different porosity patterns across the thickness: uniform, symmetrical, asymmetric bottom, and asymmetric top distributions. The equation of motion of the FGM porous nanoplate, including the effects of thermal load, is derived with Hamilton's principle, and then solved analytically by employing the Navier method. For the free vibration responses of the nanoplate, the effects of nonlocal and strain gradient elasticities, temperature rise, porosity volume fraction and its distribution are analyzed.
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