This study investigates the effect of ZrO2 reinforcement (5, 10 and 15) vol.% on dry sliding wear behaviour AZ31 Mg alloy composites produced using stir casting. The test (pin disc) was conducted at different loads (10, 20, 30 40) N velocities (1, 3 5) m/s. variation in rate friction co-efficient with change load a constant distance determined. Results showed that exhibited lower higher speeds ...

Composite titanium carbonitride (TiCN) thin films deposited on AZ31 by DC/RF magnetron sputtering were vacuum annealed at different temperatures. Vacuum annealing yields the following on the structure and properties of the films: the grain grows and the roughness increases with an increase of annealing temperature, the structure changes from polycrystalline to single crystal, and the distributi...

Abstract This study aims to analyze the influence of process parameters used for hydrothermal synthesis CaP coatings on their properties and improve corrosion resistance biocompatibility compared substrat AZ31. The monitored were deposition time, pH reaction mixture, concentration precursors in mixture. For deposited AZ31 magnesium alloy, surface morphology number structural defects evaluated u...

Abstract In this work, the influence of twin-roll casting (TRC) speed on microstructure through-thickness uniformity, centerline segregation, and surface quality three wrought Mg alloys was investigated. The microstructural features AZ31, ZX11, ZWK200 produced at TRC speeds ranging from 1.8 m/min to 2.2 (for AZ31 ZWK200), 1.5–2.5 ZX11 alloy) were analyzed. There clear differences in uniformity ...

We use phase-field models to characterize the microstructure present in magnesium AZ31 alloy solidified under welding conditions. We focus our attention on the study of the conditions under which a columnar-to-equiaxed transition (CET) is observed in resistance spot welds. Our simulations show how the size and shape of the columnar and equiaxed regions depend on factors such as cooling rate, te...

In the present study, friction spot welding or refill friction stir spot welding was performed to consolidate dissimilar AA5754 Al and AZ31 Mg alloys. The intermetallic compounds of Al12Mg17 and Al3Mg2 were primarily found in the weld, distributed at the interface between the base materials and in the Al top sheet. The distribution of the intermetallic compounds and the interfacial area between...

غلاف سوخت‌های هسته‌ای یکی از مهم‌ترین اجزا رآکتور محسوب می‌شود. این غلاف‌ها آلیاژ زیرکونیم ساخته می‌شوند؛ اما خواص ترمومکانیکی چندان مناسبی ندارند؛ لذا در پژوهش سعی شده با تغییر مواد به‌کاررفته NuScale به یک نوترونیکی و مناسب دست پیدا شود. قلب موجب ضریب تکثیر مؤثر طول بازه سوخت‌گذاری می‌گردد. شبیه‌سازی که M5 بهره می‌برد به‌عنوان معیار هم‌­چنین همراه سه نوع دیگر آلیاژهای رایج دو آن FeCrAl است، د...