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The elastic properties and room-temperature aging behaviors of body-centered cubic Mg–40Li and Mg–40Li–5Al (at.%) alloy single crystals, developed for biodegradable orthopedic implants, were investigated by measuring their single-crystalline elastic constants. It was found that the Young's moduli of Mg–40Li and Mg–40Li–5Al single crystals strongly depend on the crystallographic direction, and the Young's modulus along the 〈100〉 direction is approximately 21 GPa, which is almost the same as that of natural bones. More importantly, we found that the Young's moduli along 100 > in the Mg–40Li and Mg–40Li–5Al alloys changed during aging near room temperature, which may have been caused by the precipitation or dissolution of the θ -phase MgAlLi2 or hcp α-phase.

The electrodeposition of tungsten at moderate temperatures (4 and WCl5 in 1-ethyl-3-methylimidazolium chloride (EMIC) and EMIC–AlCl3 ionic liquids at 80 °C–120 °C. W-rich films with a thickness of approximately 1 μm were obtained from the Lewis acidic EMIC–AlCl3–WCl5 bath, whereas the other baths did not yield any deposits. The films obtained from the EMIC–AlCl3–WCl5 bath at 80 °C had higher W contents of 54 at.% than those obtained at 120 °C. X-ray absorption near-edge structure spectra of the W-rich films indicated that W existed in an oxidized state. The findings of this study can be used as a guide to explore optimal electrolytes and electrolytic conditions for the electrodeposition of metallic W at moderate temperatures.