Acta Metallurgica Sinica (English Letters) ›› 2019, Vol. 32 ›› Issue (1): 1-9.DOI: 10.1007/s40195-018-0847-9
Special Issue: 2019年镁合金专辑; 2019年腐蚀专辑-2
• Orginal Article • Next Articles
Bao-Jie Wang1, Ji-Yu Luan1, Dao-Kui Xu2,3(
), Jie Sun1, Chuan-Qiang Li2,3, En-Hou Han2,3
Received:2018-09-26
Revised:2018-10-17
Online:2019-01-10
Published:2019-01-18
Contact:
Xu Dao-Kui
About author:Author brief introduction:Dao-Kui Xu Professor of IMR, CAS, and “Young Merit Scholar” of Corrosion Center in the Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS). He achieved Ph.D. degree from IMR, CAS, in 2008, during which he obtained “Chinese Academy of Sciences-BHP Billiton” Scholarship award, “Shi Changxu” Scholarship award and “Zhu-LiYueHua” Excellent Doctorate Student Scholarship of Chinese Academy of Sciences. He worked as a Research Fellow in ARC Center of Excellence, Design of Light Metals, Department of Materials Engineering, Monash University, Australia (2008.10-2011.10). He published more than 60 peer-reviewed scientific papers, attended 20 invited lectures and holds seven patents. His papers were cited more than 1200 times. His research interests mainly include: (1) fatigue behavior and fracture toughness of light metals, such as Mg, Al and Ti alloys; (2) effects of alloying, heat treatment and thermomechanical processes on the microstructural evolution and mechanical improvement of light metals; (3) corrosion, stress corrosion cracking and corrosion fatigue behavior of lightweight alloys; and (4) design of new lightweight alloys with a good balance of properties in terms of mechanical property and corrosion resistance.
Bao-Jie Wang, Ji-Yu Luan, Dao-Kui Xu, Jie Sun, Chuan-Qiang Li, En-Hou Han. Research Progress on the Corrosion Behavior of Magnesium-Lithium-Based Alloys: A Review[J]. Acta Metallurgica Sinica (English Letters), 2019, 32(1): 1-9.
Fig. 2 Observation to the samples after immersion in 0.1 M NaCl for 7 days: a, b overall surfaces, c, d cross sections of the as-cast Mg-6Li and Mg-6Li-6Zn-1.2Y alloys, e high-magnification observation to the squared area in image d. Bright holes and black filaments in image a are the deep pits and the filiform corrosion, respectively. [70]
Fig. 3 Surface layer formation on HCP Mg and BCC Mg-Li after exposure to standard atmospheric conditions. Images a-c: schematics of the incomplete coverage of the surface film developed on conventional HCP Mg alloys a; thin surface film on the extruded Mg-Li alloy and potential reaction sites due to the conventional two-phase structure b; and complete coverage of the thicker surface film on the solute nanostructured BCC Mg-Li alloy c. The inset in c denotes the solute nanostructure. The white arrows in images b, c represent schematically the difference in thickness of the surface layers between the extruded and solute nanostructured alloys [28]
| Compound | Li2O | MgO | LiOH | Mg(OH)2 | Li2CO3 | MgCO3 |
|---|---|---|---|---|---|---|
| PBR | 0.57 | 0.8 | 1.26 | 1.80 | 1.35 | 2.04 |
Table 1 PBR of some chemical compounds [80]
| Compound | Li2O | MgO | LiOH | Mg(OH)2 | Li2CO3 | MgCO3 |
|---|---|---|---|---|---|---|
| PBR | 0.57 | 0.8 | 1.26 | 1.80 | 1.35 | 2.04 |
|
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