加工成型工艺对制约镁产业发展的思考与观点-中国材料进展

文章信息/Info

Title:: Reflections and Viewpoints on Restricting of the Development of Magnesium Industry by Processing and Forming Technology

Author(s):: YAN ZhaomingZHANG Zhimin; School of Materials Science and Engineering,North University of China, Taiyuan 030051, China

Keywords:: development of Mg industry; processing and forming; low-cost manufacturing; uniform control; microstructure evolution; strengthening and toughening mechanisms

摘要:: 镁及其合金是目前工程应用中最轻的结构金属，在航空航天、国防军工、交通运输以及3C电子等领域具有广泛的应用前景，对于促进国家“双碳”战略、保障经济建设与国防安全有着重要作用。加工成型工艺是镁产品制备与镁产业发展的重要一环，常用的镁合金加工方法主要包含了液态成形、固态成形、增材制造、焊接等，目前产业发展存在着能耗高、经济性低、稳定性与均匀一致性差的问题，如何从源头解决成分均匀控制难题、提升加工经济性与稳定性是获得高品质镁合金的关键，而其内在科学问题是掌握加工过程中的微纳组织演变规律、强韧化机制，明晰成形缺陷的成因、演化规律，掌握合金成分高效检测及精准调控方法，基于此，可有效实现镁产品的高效低成本制造，并建立相关的测试评价标准。

Abstract:: Magnesium (Mg) and its alloys are currently the lightest structural metals in engineering applications, with broad application prospects in fields such as aerospace, defense and military industry, transportation, and electronic 3C. They play an important role in promoting the national dual carbon strategy, ensuring economic construction, and national defense security. Processing and forming technologies are an important part of the development and application of the magnesium industry. The commonly used processing technologies mainly include casting, forging, additive manufacturing, welding, etc. At present, there are problems with high energy consumption, low economic efficiency, poor stability and uniformity in industrial development. The key to fabricate the high-quality Mg alloys is to solve the problem of uniform control of composition, improve processing economy and stability. The scientific problem is to grasp the evolution laws of micro and nano structures, explicit the strengthening and toughening mechanisms during the processing, clarify the causes and evolution laws of forming defects, master the efficient detection and precise regulation methods of alloy components. Based on these, we can realize the lowcost manufacturing of Mg products with high efficiency, and establish relevant testing and evaluation standards.