Park, Jaeho Han, Hyung-Seop Park, Jimin Seo, Hyunseon Edwards, James Kim, Yu-Chan Ok, Myoung-Ryul Seok, Hyun-Kwang Jeon, Hojeong 2024-01-19T22:03:09Z 2024-01-19T22:03:09Z 2021-09-03 2018-08 0169-4332 https://pubs.kist.re.kr/handle/201004/121056 The effects of femtosecond (fs) laser treatment on a biocompatible Mg-Ca-Zn alloy were systemically analyzed. The fs laser altered the surface microstructure of the Mg-Ca-Zn alloy, resulting in reduced corrosion through localized melting and rapid solidification. Treatment with appropriate laser energy (500 Hz) generated an exceptionally thin modified layer (similar to 2 mu m) with a uniformly refined microstructure. Laser-induced remelting of the secondary phase reduced galvanic corrosion and prevented the occurrence of pitting corrosion, resulting in overall reduced corrosion. Results reveal that the corrosive nature of the biodegradable Mg alloy can be controlled through surface modification by a fs laser. (C) 2018 Elsevier B.V. All rights reserved. English Elsevier BV Corrosion behavior of biodegradable Mg-based alloys via femtosecond laser surface melting Article 10.1016/j.apsusc.2018.04.088 1 Applied Surface Science, v.448, pp.424 - 434 Applied Surface Science 448 424 434 N scie scopus 000432797100048 2-s2.0-85045574203 Chemistry, Physical Materials Science, Coatings & Films Physics, Applied Physics, Condensed Matter Chemistry Materials Science Physics Article MAGNESIUM ALLOY MECHANICAL-PROPERTIES WEAR-RESISTANCE IN-VITRO MICROSTRUCTURE AL DEGRADATION REFINEMENT STEEL ZE41 Biodegradable metal Mg alloy Laser surface modification Femtosecond laser Corrosion property