WebAlloying elements, surface treatment, processing, and other factors can be successfully reflected in the corrosion test in NaCl solution, but other components in the internal environment, such as carbonate, phosphate, and calcium ions, will seriously affect the corrosion rate and corrosion mechanism of magnesium (Xin et al., 2008; Zeng et al ... WebDuring magnesium corrosion, formation of a magnesium hydroxide film on the surface of the metal occurs, accompanied by local alkalization ( Makar and Kruger, 1993 ). The global corrosion reaction of magnesium ( Eq. 1) can be divided into an anodic and a cathodic reaction ( Feliu and Llorente, 2015 ): M g → M g 2 + + 2 e − ( 2)

Effect of pH value on the corrosion and corrosion fatigue behavior …

WebMar 28, 2024 · It can be seen from Fig. 9(b) that with the increase in the soaking time, the corrosion rate of AZ91D magnesium alloy substrate gradually accelerated and reached the maximum value of −42.098 mg/cm 2. The corrosion rate of the sample was almost unchanged after soaking for 168 h, which was only 0.4178 mg/cm 2. The corrosion rate … WebMar 14, 2024 · In this review, according to the human body's intake of elements, the current mainstream implanted magnesium alloy system is classified and discussed, and the corrosion mechanism of magnesium alloy in vivo and in vitro is described, including general corrosion, localized corrosion, pitting corrosion, and degradation of body fluid … greece energy production

Corrosion resistant coatings for magnesium alloys - Keronite

WebMar 1, 2007 · The corrosion mechanisms of magnesium and its alloys have been widely investigated and discussed in the literature, under different conditions using a large … WebFeb 11, 2024 · Results are as follows: (i) the corrosion mechanism of AM60 under different pH values was different according to EIS; (ii) the corrosion resistance and corrosion fatigue life reduced in the following order: pH 9.0 > pH 7.4 > pH 5.2; (iii) the crack initiation was associated with hydrogen embrittlement of AM60 on the basis of fractographic analysis. WebJan 6, 2024 · The role of alloyed Sc on the corrosion behavior of Mg was revealed using an understanding of the anodic and cathodic kinetics derived from experimental measurements and DFT calculations. After T4 solution treatment, the Mg–Sc alloy exhibited higher corrosion resistance than high pure Mg. The scandium oxide-rich surface layers … greece english newspaper