Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403

공학

한국표면공학회지 (44권6호 239-245)

Study of Plating Layer Formation of Lightweight Magnesium Alloy (AZ31B)

경량 마그네슘 합금(AZ31B)의 도금층 형성 연구

최경수;최순돈;민봉기;이승현;신현준;
Choi, Kyoung-Su;Choi, Soon-Don;Min, Bong-Ki;Lee, Seung-Hyeon;Sin, Hyeon-Jun;

영남대학교 신소재공학부;영남대학교 중앙기기센터;영남이공대학 기계공학과;
School of Materials Science and Engineering, Yeungnam National University, Bo Kwang TS Enterprise Affiliated Laboratory;School of Materials Science and Engineering, Yeungnam National University;Instrumental Analysis Center, Yeungnam National University;Division of mechanical engineering technology, Yeungnam Collage of Science & Technology;

DOI : 10.5695/JKISE.2011.44.6.239

Abstract

Magnesium alloys is the lightest by structural metals, but it is not good corrosion resistant because of pit, void. Particularly, AZ31B magnesium alloy sheets that have slag, scratch by rolling process indicate some defects. The objective of this research is to perform uniform plating on AZ31B by studying etching and zincate process. Especially, zincate treatment by zinc salt and pyrophosphate is the most important in the decoration plating. Dissolution of magnesium is reduced by the formation of uniform zinc conversion layer during strick and post process, which decreases defects for plating process.

Keywords

Magnesium;Electroplating;zincate;Light metal;AZ31B;