MB22合金为 Mg-Y-Zn-Zr 系变形镁合金,可用作板材。由中国有色金属总公司洛阳铜加工厂、航空部六二一所、航天部上海新江机器厂联合研制成功。1981年12月由航天部及冶金部联合鉴定,认为完全满足使用要求。MB22合金的室温抗拉强度略高于 MB3变形镁合金或相当(MB3板材的σ_b≥25kgf/mm~2)。但 MB22 MB22 alloy is a Mg-Y-Zn-Zr series deformed magnesium alloy, which can be used as a plate material. By the China Nonferrous Metals Corporation Luoyang Copper Processing Plant, Ministry of Aviation June 21, Aerospace Department of Shanghai Xin Jiang Machinery Factory jointly developed. December 1981 by the Ministry of Space and Metallurgical jointly identified, that fully meet the requirements. The room temperature tensile strength of MB22 alloy is slightly higher than that of MB3 deformed magnesium alloy (σ_b≥25kgf / mm ~ 2 for MB3 sheet). But MB22