Influence of MnCO3 Addition on the Grain Refinement of AZ91 Magnesium Alloy

Xiao Ying Liu; Hao Ran Geng; Min Zuo; Peng Fei Ji

doi:10.4028/www.scientific.net/AMM.703.56

Paper Titles

Evaluation of Binary System (NaI-Na₃PO₄) Solid Electrolyte and Performance of Sodium Battery
p.33

Fabrication Technology Study of Thermal Isolation Structure on Chip
p.41

Flow Behavior of Composites of PA6/Kaolin Nanoparticles
p.45

Influence of Bi_3.15Nd_0.85Ti₃O₁₂ Buffer Layer on Structure and Electrical Properties of Bi_0.94Ce_0.06Fe_0.97Ti_0.03O₃ Thin Films
p.51

Influence of MnCO₃ Addition on the Grain Refinement of AZ91 Magnesium Alloy
p.56

Influence on the LED Luminous Efficiency from COB Packaging with Different Chip Arrangement
p.60

Investigation of the Existence of Textile Materials as Pens from Painted Pottery
p.64

Investigation of Thermal Residual Stresses in Co-Cured Aluminum/Composite Hybrid Shaft Using Finite Element Method
p.68

Magnetic Microparticles@UiO-67 Core-Shell Composites as a Novel Stationary Phase for High Performance Liquid Chromatography
p.73

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 703Influence of MnCO3 Addition on the Grain...

Influence of MnCO₃ Addition on the Grain Refinement of AZ91 Magnesium Alloy

Abstract:

This article reports the effect of MnCO₃addition on the grain refinement efficiency of AZ91 magnesium alloy. The results indicate that the addition of MnCO₃ has excellent grain refining efficiency for AZ91 alloy, which is mainly attributed to the Al₄C₃ particles formed in the melt, besides Mn is indispensable to grain refinement in Al-bearing magnesium alloys. There is an optimal addition amount of 0.6% at 740 °C and the grain size is reduced from 245 to 91 μm. At the same time, the corrosion resistance performance of MnCO₃-added AZ91is improved.