Progressively advantageous long-term corrosion profile of Mo over Mg, Zn, and Fe from the perspective of biodegradable metals
Fei Gao, En Su, Jiaming Hou, Jiale Wang, Yukun Zhou, Haotian Qin, Zhenhai Xie, Jinlong Mao, Huaiyu Li, Wenjie Tao, Yingqi Chen, Junyu Qian, Guojiang Wan
Abstract
Long-term corrosion profile of molybdenum was studied in three different simulated body fluids up to 28 days, compared with magnesium, zinc, and iron from the perspective of biodegradable metals (bio-metals). Their corrosion rate , mode, products and surface characteristics were comprehensively fathomed. Strikingly, Mo showed progressively advantageous long-term corrosion behavior with the smallest corrosion rate, and most importantly, more uniform mode, as compared with the other three bio-metals. It also performed bilaterally under the simulated inflammatory and bovine serum protein added conditions, with different corrosion progressions. These findings provide an optimistic outlook in opting molybdenum as a new type of bio-metal.