Effects of the pouring temperature on the formation of the bonding zone between AZ91 and AlSi17 in the compound casting process

Characterization of the Bonding Zone in AZ91/AlSi12 Bimetals Fabricated by Liquid-Solid Compound Casting Using Unmodified and Thermally Modified AlSi12 Alloy

“…The experimental data presented in the above-mentioned works show that the microstructure of the bonding zone undergoes modification because of the presence of other alloying elements in the alloys joined. As pointed out in [15] and [19] to [21], the use of AlSi alloy in the form of a solid insert leads to the formation of the Mg-Al intermetallic phases as well as the Mg 2 Si phase in the bonding zone close to the Al alloy. Applying ZE41 magnesium alloy [21] also results in some modification of the bonding zone structure in the area close to the Mg alloy.…”

“…For this reason, structure modification to improve the strength properties of a bimetallic joint seems a promising approach. Previous research has included studies of compound casting applied to join Mg alloys to Al alloys, e.g., Mg/AlMg1 [13], Mg/ A413 [15], AM50/A319 [16], AZ91/A356 [18] and [22], AZ91/AlSi17 [19] and [20], ZE41/AlSi12 [21], AZ31/AlZn (AlZn6, AlZn15, AlZn30) [23], and AZ31/ AW-6060 [25]. The experimental data presented in the above-mentioned works show that the microstructure of the bonding zone undergoes modification because of the presence of other alloying elements in the alloys joined.…”

Characterization of the AZ31/AW-6060 Joint Fabricated using Compound Casting with a Zn Interlayer at Relatively Low Temperature Conditions

“…The research results on the properties of such joints show that favourable strength is achieved for the joints with a thin bonding zone. Some studies have focused on the fabrication of joints between Mg and Al alloys, e.g., AZ91/A356 [17] and [18], AZ91/AlSi17 [19] and [20], AZ91/AlSi12 [21], ZE41/AlSi12 [22], AZ31/AW-6060 [23]. The results of the above-mentioned works indicate that the presence of alloying elements may lead to significant modification of the structure of the created bonding zone and can affect the mechanical properties of the joint.…”

The Effect of a Zinc Interlayer on the Microstructure and Mechanical Properties of a Magnesium Alloy (AZ31)–Aluminum Alloy (6060) Joint Produced by Liquid–Solid Compound Casting

“…Mg/Al components can be fabricated using various methods: TIG welding, 1 resistance spot welding, 2 ultrasonic spot welding, 3 diffusion bonding, 4 hot rolling, 5,6 extrusion, 7,8 friction stir welding, 9 explosive cladding, 10 or compound casting. [11][12][13][14][15][16][17][18][19] The major problem related to the fabrication of Mg/Al bimetallic joints is the occurrence of hard and brittle Mg-Al intermetallic phases in the bonding zone, because they affect the properties of the bimetal elements, i.e., reduce their strength. The mechanical properties of such joints are dependent on the thickness and structure of the bonding zone, which, on the other hand, depend on the fabrication method.…”

“…During the joining process, the reactions at the interface lead to the formation of hard and brittle intermetallic Mg-Al phases in the bonding zone. [12][13][14][15][16][17] Attempts have been made to improve the properties of joints fabricated using this method. The compound casting experiments by Papis et al 11 involved pouring melted Mg onto a surface-treated AlMg1 solid insert.…”