Development of a magnesium alloy with good casting characteristics on the basis of Mg–Al–Ca–Mn system,having Mg–Al2Ca structure

作     者：A.V.Koltygin V.E.Bazhenov E.A.Belova A.A.Nikitina 

作者机构：National University of Science and Technology“MISiS”Leninskii pr.4Moscow 119049 Russia 

出 版 物：《Journal of Magnesium and Alloys》 (镁合金学报（英文）)

年 卷 期：2013年第1卷第3期

页      面：224-229页

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：Magnesium Casting Calcium Casting magnesium alloys 

摘      要：Application of calcium as alloying element for magnesium alloys has been considered according to literature ***–7%Al–4%Ca–0.5%Mn casting alloy was offered,which possesses the low propensity to the hot brittleness and good *** alloy has the moderate strength(σu=150 MPa)and the satisfactory percentage elongation(δ=3%).It is shown,that calcium-containing alloys smelting of Mg–Al–Ca–Mn system is preferable with the application of low-chloride flux FL10(20%MgCl_(2);29%KCl;12%BaCl_(2);23%CaF2;15%MgF2;1%B2O3).The alloy smelting in the atmosphere of argon and SF6 mixture results in the increased shelling and waste of *** heat treatment is offered for the developed alloy,which is directed to the Al_(2)Ca phase *** developed magnesium alloy,alloyed with calcium,is perspective for the industry production of low-cost moulding.