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前言众所周知,Mg-Zn-Zr系变形镁合金是国内外镁合金中室温强度较高、综合性能好、应用范围广的结构合金,其中以MB15为代表。用稀土元素对Mg-Zn-Zr系合金进行附加合金化,可进一步提高合金的室温抗拉强度、屈服强度和高温瞬时强度。以MB15为例,分别添加钕(以下简称含钕合金)和钇(以下简称含钇合金),可使原MB15合金强度提高20—50兆帕,而耐蚀性能、工艺性能、焊接性能基本上不变。本文通过一系列试验,并与MB15对
Preface As we all know, Mg-Zn-Zr-based deformation of magnesium alloy is magnesium alloy at home and abroad higher strength, good overall performance, the application of a wide range of structural alloys, including MB15 as the representative. Additional alloying of Mg-Zn-Zr alloy with rare earth elements can further improve the room temperature tensile strength, yield strength and high temperature instantaneous strength of the alloy. Taking MB15 as an example, the addition of neodymium (hereinafter referred to as neodymium alloy) and yttrium (hereinafter referred to as yttrium-containing alloy) can increase the strength of the original MB15 alloy by 20-50 MPa while the corrosion resistance, processability and welding performance are basically constant. This article passes a series of experiments, and with MB15 pairs