Influence of cryogenic treatment on the corrosion of AZ91 and AM60 magnesium alloys in an isotonic solution

2019 ◽  
Vol 61 (11) ◽  
pp. 1039-1044
Author(s):  
Bassady Gassama ◽  
Mustafa Özgür Öteyaka
Keyword(s):  
Magnesium Alloys ◽  
Cryogenic Treatment ◽  
Isotonic Solution

Effect of Cryogenic Treatment on the Microstructure and Mechanical Properties of AZ31 Magnesium Alloy

2011 ◽  
Vol 686 ◽  
pp. 53-56 ◽  
Author(s):  
Jie Li ◽  
Xian Quan Jiang
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Magnesium Alloy ◽  
Magnesium Alloys ◽  
Cryogenic Treatment ◽  
Optimal Combination ◽  
Az31 Magnesium Alloy ◽  
Second Phase ◽  
Microstructure And Mechanical Properties ◽  
Az31 Magnesium Alloys

The microstructure and mechanical properties of AZ31 magnesium alloys were investigated in this paper. AZ31 magnesium alloys were cryogenically treated at -196°C for 1, 5 and 24 hours, respectively. The results showed the grains of AZ31 were initially refined and grew up with the increase of cryogenic time, the second phase decreased gradually, and the rigidity and tensile strength decreased drastically and then increased. As a result, AZ31 magnesium alloys with 1 hour cryogenic treatment were able to obtain the optimal combination properties.

Microstructural and Mechanical Behaviour Evaluation of Mg-Al-Zn Alloy Friction Stir Welded Joint

2020 ◽  
Vol 17 (3) ◽  
pp. 8150-8159
Author(s):  
Kulwant Singh ◽  
Gurbhinder Singh ◽  
Harmeet Singh
Keyword(s):  
Heat Treatment ◽  
Friction Stir Welding ◽  
Magnesium Alloys ◽  
Mechanical Performance ◽  
Fuel Efficiency ◽  
Research Work ◽  
Grain Structure ◽  
Tensile Fracture ◽  
Friction Stir ◽  
The Impact

The weight reduction concept is most effective to reduce the emissions of greenhouse gases from vehicles, which also improves fuel efficiency. Amongst lightweight materials, magnesium alloys are attractive to the automotive sector as a structural material. Welding feasibility of magnesium alloys acts as an influential role in its usage for lightweight prospects. Friction stir welding (FSW) is an appropriate technique as compared to other welding techniques to join magnesium alloys. Field of friction stir welding is emerging in the current scenario. The friction stir welding technique has been selected to weld AZ91 magnesium alloys in the current research work. The microstructure and mechanical characteristics of the produced FSW butt joints have been investigated. Further, the influence of post welding heat treatment (at 260 °C for 1 h) on these properties has also been examined. Post welding heat treatment (PWHT) resulted in the improvement of the grain structure of weld zones which affected the mechanical performance of the joints. After heat treatment, the tensile strength and elongation of the joint increased by 12.6 % and 31.9 % respectively. It is proven that after PWHT, the microhardness of the stir zone reduced and a comparatively smoothened microhardness profile of the FSW joint obtained. No considerable variation in the location of the tensile fracture was witnessed after PWHT. The results show that the impact toughness of the weld joints further decreases after post welding heat treatment.

Development of chemical hydrogen source based on magnesium alloys hydrides

2018 ◽  
pp. 27-31
Author(s):  
I.A. Gvozdkov ◽  
◽  
V.A. Belyaev ◽  
S.N. Potapov ◽  
V.N. Verbetsky ◽  
...  
Keyword(s):  
Magnesium Alloys

Effect of cryogenic treatment on the microstructure and wear behavior of a T-42 tool steel

2015 ◽  
Vol 57 (4) ◽  
pp. 306-310 ◽  
Author(s):  
Lakhwinder Pal Singh ◽  
Jagtar Singh
Keyword(s):  
Tool Steel ◽  
Wear Behavior ◽  
Cryogenic Treatment
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