Ultra-Fine Grained Degradable Magnesium for Biomedical Applications

Enhancement of resistance to galvanic corrosion of ZE41 Mg alloy by equal channel angular pressing

“…The grain refinement obtained is in good agreement with one of the grain refinement models proposed by Figueiredo and Langdon . A two‐step ECAP strategy was adopted in this study to achieve enhanced improvement in mechanical properties namely, yield strength, percent elongation as well as ultimate tensile strength suggested by various researchers . The SEM images of the as‐received and 6th pass ECAPed samples are represented in Figures e and f, respectively.…”

“…The impedance value increased with an increase in the number of passes from the 1st pass, 2nd pass, 3rd pass, and 4th pass due to the fine distribution of secondary phase particles (T‐phase) depicted in Figure f. A similar kind of second phase distribution and improvement in corrosion resistance was observed by various investigators . For the 5th pass and 6th pass Mg sample in the galvanic couple, the impedance values were lesser compared with the 4th pass but greater than that of the 1st pass, 2nd pass, and 3rd pass galvanic sample in 0 M NaCl solution.…”

“…Some of the researchers performed ECAP on magnesium alloys using a two‐step and multistep strategy and have reported the effect of a number of steps on mechanical properties . Recent researchers have studied mechanical properties as well as corrosion behavior of magnesium and its alloys processed by two‐step ECAP . Most of the researchers studied the galvanic corrosion behavior of magnesium alloys without reporting on methods to improve the same.…”

Effects of texture and grain size on mechanical properties of AZ80 magnesium alloys at lower temperatures

“…The influence of ECAP processing on RT mechanical properties of Mg alloys has been widely investigated [7,10]. However, the formability of ECAP processed alloys was mainly focused on the high-temperature range, above 473 K [11,12].…”

Grain size and texture dependence on mechanical properties, asymmetric behavior and low temperature superplasticity of ZK60 Mg alloy

“…Due to the low density, high specific strength and stiffness, excellent damping capacity and biocompatibility, magnesium and its alloys have been attracting much attention as potential metallic materials in a wide range of automotive, military, electronic, aerospace and biomedical applications [1][2][3][4][5][6]. However, Mg exhibits poor formability at room temperature due to its hexagonal closed-packed (HCP) crystal structure with limited number of available slip systems.…”