文章信息/Info

Title:

Basic Issues on the Corrosion and Control Technologies of Magnesium Alloys

文章編號:

1674-3962(2024)12-1077-07

作者:

宋影偉; 宋光鈴; 曾榮昌; 吳量; 韓恩厚

1. 中國科學院金屬研究所 核用材料與安全評價重點實驗室，遼寧 沈陽 110016 2. 南方科技大學 工學院，廣東 深圳 518055 3. 山東科技大學 材料科學與工程學院，山東 青島 266590

Author(s):

SONG Yingwei;  SONG Guangling;  ZENG Rongchang;  WU Liang;  HAN En-Hou

1. Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China; 2. College of Engineering, Southern University of Science and Technology, Shenzhen 518055, China; 3. College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China et al

關鍵詞:

鎂合金; Mg產業痛點; 腐蝕機制; 防護涂層; 服役環境; 解決措施

Keywords:

Mg alloys;  pain points of Mg industry;  corrosion mechanism;  protective coatings;  service environment;  solution measures

分類號:

TG146.22；TG174.4

DOI:

10.7502/j.issn.1674-3962.202404025

文獻標志碼:

A

摘要:

耐蝕性差是制約鎂合金廣泛應用的瓶頸問題，行業關注的腐蝕痛點問題包括鎂合金連接件的電偶腐蝕、表面防護涂層破損后易腐蝕以及鎂合金在力學/化學交互作用下的腐蝕問題，分析了這些腐蝕痛點背后的原因，提出了需要進一步研究的鎂合金腐蝕科學問題，包括鎂合金電化學腐蝕的控制步驟、多因素耦合作用下的電偶腐蝕規律、力學/化學交互作用下的腐蝕機制、實用低成本防護涂層的構筑及響應機制等，并建議從腐蝕機理→材料→服役環境→加工制備→服役性能→表面防護→方法論等方面全方位思考，從本質上澄清鎂合金的腐蝕機理，開發出低成本、高耐蝕、多功能的鎂合金防護涂層，促進其廣泛應用。

Abstract:

Poor corrosion resistance is a bottleneck problem that restricts the wide application of magnesium alloys. The corrosion pain points in the Mg industry include galvanic corrosion of magnesium alloy connectors, easy corrosion after surface protective coatings being damaged, and corrosion of magnesium alloys under force/chemical interaction. The reasons behind these corrosion pain points are analyzed, and the scientific problems about the corrosion of magnesium alloys are proposed, including the control steps of electrochemical corrosion, the galvanic corrosion law under multi-factor coupling, the corrosion mechanism under force/chemical interaction, the construction and response mechanism of low-cost protective coatings. Based on the comprehensive consideration of the corrosion problems of magnesium alloys from the aspects of corrosion mechanism→materials→service environment→processing→service performance→surface protection→methodology, the corrosion mechanism of magnesium alloys is clarified, and the low cost, high corrosion resistance and multi-functional protective coatings are developed to promote the wide application of magnesium alloys.