Microstructure and mechanical properties of diffusion-bonded Mg–Al joints using silver film as interlayer

Wang, Yiyu; Luo, Guoqiang; Zhang, Jian; Shen, Qiang; Zhang, Lianmeng

doi:10.1016/j.msea.2012.09.035

Cited by 64 publications

(30 citation statements)

References 23 publications

(15 reference statements)

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“…The impact of interlayer or addition of alloying element on the reduction or elimination of Al-Mg-IMCs formation and the microstructure and mechanical properties of Al/Mg have recently been investigated [26][27][28][29][30]. At low temperatures, Zn preferably reacts with Mg to yield Mg-Zn IMCs, based on the phase diagrams of Mg-Zn and Al-Zn.…”

Section: Introductionmentioning

confidence: 99%

The effect of changing chemical composition on dissimilar Mg/Al friction stir welded butt joints using zinc interlayer

Abdollah-zadeh

Shokuhfar

Cabrera

et al. 2018

Journal of Manufacturing Processes

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In this study, solid state joining technology of friction stir welding (FSW) was carried out for Al and Mg butt joints.To improve the microstructural characteristics of the banded structure zone, before to the FSW process, a Zn interlayer was also inserted in the butt joints. Optimal conditions for friction stir welding were obtained using a combination of two travel speeds (25 and 35 mm/min) and three rotation speeds (550, 600 and 650 rpm). Mg-Zn and Mg-Al-Zn IMCs, Al solid solution and residual Zn were the most common phases in the stirred zone, eliminating Al-Mg intermetallic formation. The joint fabricated at 35 mm/min and 600 rpm, in which tensile strength of the weld improved from 141 to 175 MPa and an elongation from 0.7 to 1.9 was achieved, gave the maximum mechanical properties compared with the Zn free sample FSWed under identical conditions. The fracture micrographs were compatible with the corresponding ductility results and the fracture surfaces of Zn added samples possessed a fine texture combining brittle and ductile fracture features. Meanwhile, the hardness level was lower than that of the Zn free sample because of the change in the IMCs composition of the Zn added samples.

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Section: Introductionmentioning

confidence: 99%

The effect of changing chemical composition on dissimilar Mg/Al friction stir welded butt joints using zinc interlayer

Abdollah-zadeh

Shokuhfar

Cabrera

et al. 2018

Journal of Manufacturing Processes

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“…The diffusion bonding process parameters including bonding temperature, holding time and pressure are key factors in interfacial structures, compound formation and bonding strength of the joints [4].…”

Section: Introductionmentioning

confidence: 99%

Study on Bond Strength of Bonded Gray Cast Iron

Abdullah¹,

Rawhdan²

2017

JNUS

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In the present study, two gray cast iron specimens were diffusion bonded at the temperatures of 700, 750, 800, 850, and 900 °C, the furnace used atmosphericexperiment under a pressing load of 1 and 2 ton for 15, 30 and 60min. After diffusion bonding, shear test measurements of interface region were made. As a result, from the microstructural observations, a good bonding along the interface of the bonded couples were detected since the interface is free from voids and microcracks. To evaluate the bond strength, the shear test investigation was used. The actual bonded area was calculated by using a computer package called (Auto Cad 2006). The results shows that the bond strength increases with increasing the temperature and holding time. Fracturography of the interface was carried out by using optical microscope before and after the experiments. The microstructure results shows the formation of carbide. Its precipitation increases with increasing the bonding temperature and time.

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“…The solid state diffusion between two metals is a common process used in many industrial situations such as diffusion bonding between two metals of different nature [1,2]. This process leads sometimes to the formation of intermetallic compound layers (IMCs).…”

Section: Introductionmentioning

confidence: 99%