In this work, the microstructure, mechanical, and anti-wear properties of alloyed-extruded-aged Mg-8.3Gd-4.5Y-1.4Zn-0.3Zr (wt%) alloys were investigated by X-ray diffraction (XRD), scanning electron microscope (SEM), nanoindentation, wear tests. Results showed that alloying—extrusion processing induced a significant grain refinement magnesium resulting in formation bulk Mg24(GdYZn)5 at boundari...

production of fe-c alloy powders by mechanical alloying was studied. fe and graphite elemental powdermixtures containing 0.8 and 1.5wt.% graphite were mechanically alloyed using a planetary ball mill. thestructural changes of powder particles during mechanical alloying were studied by x-ray diffractometery,scanning electron microscopy and microhardness measurements. for both compositions, mecha...

Novel Mg-Zr-Sr alloys have recently been developed for use as biodegradable implant materials. The Mg-Zr-Sr alloys were prepared by diluting Mg-Zr and Mg-Sr master alloys with pure Mg. The impact of Zr and Sr on the mechanical and biological properties has been thoroughly examined. The microstructures and mechanical properties of the alloys were characterized using optical microscopy, X-ray dif...

In an effort to maximize grain growth of open-die forged 6061 aluminum alloy parts, samples from three of Weber Metals’s suppliers (Hidal Co-Almex USA Inc., TST Inc., and Vista Metals Corp.; to be called Supplier H, Supplier T, Supplier V respectively) were cut into cylinders with diameters of 0.75 ̋ and heights of 2 ̋, and put through a simulated forging process and heat treatment. It is possibl...

In recent years, the paradigm about the metal with improved corrosion resistance for application in surgery and orthopedy was broken. The new class of biodegradable metal emerges as an alternative for biomedical implants. These metals corrode gradually with an appropriate host response and release of corrosion products. And it is absolutely necessary to use essential metals metabolized by hosti...

Porous biodegradable Mg and its alloys are considered to have a great potential serve as ideal bone substitutes. The recent progress in additive manufacturing (AM) has prompted application fabricate scaffolds with geometrically ordered porous structures. Extrusion-based AM, followed by debinding sintering, been recently demonstrated powerful approach fabricating such scaffolds, which can avoid ...

Compared with pure aluminum and wrought alloys, Al foundry alloys are more difficult to be anodized. The high content of alloying elements prevents the uniform growth oxide layer enhances embedding defects in anodic film. microstructure substrate anodizing parameters play a key role final quality layer. Variations chemical composition, casting process, pre‐ post‐anodizing treatments can signifi...