论文部分内容阅读
据国外媒体报道,美国纳诺镁业公司(NanoMag)与密执安大学合作,采仿触变成形-形变热处理工艺制备的镁板具有超细的纳米级组织,而且非常均匀,因而具有很高的强度与韧性,其强度性能比传统镁板的高一倍,并有很好的韧性。此种镁板、镁的抗拉强度与低碳钢相当,而其密度只有后者的1/4。镁合金板一直很难加工,成品率低,生产成本高,价格高昂,成为推广应用的障碍,而新工艺的成本具有竞争力,同时可批量生产。新工艺的要点是:首先用触变成形技术制备板坯,而后二次
According to foreign media reports, the United States Nano Magnesium Corporation (NanoMag) and the University of Michigan, mining imitation thixoforming - deformation heat treatment process prepared magnesium plate with ultra-fine nano-scale organization, and very uniform, and therefore has a very High strength and toughness, its strength and performance than traditional magnesium plate twice, and has good toughness. This magnesium plate, magnesium tensile strength and mild steel, and its density is only 1/4 of the latter. Magnesium alloy plate has been difficult to process, low yield, high production costs, high prices, become an obstacle to the promotion and application, and the cost of the new technology is competitive, while mass production. The main points of the new process are: First, prepare the slab by thixoforming and then secondarily