Due to their excellent biodegradability characteristics, Mg and Mg-based alloys have become an emerging material in biomedical implants, notably for repair of bone as well as coronary arterial stents. However, the main problem with Mg-based alloys is their rapid corrosion in aggressive environments such as human bodily fluids. Previously, many approaches such as control of alloying materials, c...

In this work, a series of multi-microalloying Mg alloys with high degradation rate and strength was prepared by adding AlCoCrFeNi HEA particles to the melt followed hot extrusion. The microstructure evolution mechanical properties were studied, meanwhile, corrosion evaluated immersion weight loss electrochemical tests. Results indicated that in decomposed formed Ni-rich phase, which distributed...

The ductile-to-brittle transition (DBT) behavior of two similar Fe-Cr-Al oxide dispersion strengthened (ODS) stainless steels was analyzed following the Cottrell-Petch model. Both alloys were manufactured by mechanical alloying (MA) but by different forming routes. One was manufactured as hot rolled tube, and the other in the form of hot extruded bar. The two hot forming routes considered do no...

Commercial pure Ti alloys are favorable for biomedical applications; however, they need to be strengthened by the addition of alloying elements. Herein, Ti-Fe modified with Zr were explored produce that exhibit high strength and ductility biocompatible. extruded materials solutes prepared combining solid sintering hot extrusion. X-ray diffraction results revealed lattice constant α-Ti β-Ti incr...

The effects of metallurgical factors on the aqueous corrosion behavior of highentropy alloys (HEAs) are reviewed in this article. Alloying (e.g., Al and Cu) and processing (e.g., heat treatments) effects on the aqueous corrosion behavior of HEAs, including passive film formation, galvanic corrosion, and pitting corrosion, are discussed in detail. Corrosion rates of HEAs are calculated using ele...

Aluminium alloys are one of the most preferred materials in automotive industry due to their properties such as easy recyclability, formability and high specific strength. 6XXX especially used parts good mechanical corrosion fatigue strength.6XXX cast billets or ingots by continuous casting methods. The subjected homogenization heat treatment shaped extrusion, respectively. During extrusion for...

In this research the role of alloying elements on the microstructure and mechanical properties of an as cast and hot rolled high strength low alloy (HSLA) steel was studied. Different compositions with different amount of copper in the presence of nickel, hot rolled and quenched in oil. Tensile test, hardness test, scanning electron microscope (SEM) and optical microscope (OM) were used to eval...

The results of microstructure effect on corrosion-mechanical endurance 1.2 mm thick alloy Al-Mg-Si-Cu alloying system and its welded joints, depending their condition due to different types HT are presented. Change the joints during performance various operations practically does not affect resistance against intergranular exfoliating corrosion. Effect joint under conditions simultaneous action...

Corrosion resistance of iron can be drastically improved by addition of passivating alloying elements. A supersaturated solid solution of Fe-25at%Sn was produced by mechanical alloying of commercially pure iron and tin powders for 24 hours using a planetary ball mill. Electrochemical measurements were performed on cold compacted unsintered specimens.. XRD investigation on produced alloy showed ...