铸造技术2011，Vol.32Issue(4)：554-558,5.
钼金属的脆性与强韧化技术研究进展
Research Progress on Brittleness of Molybdenum and the Technologies of Its Strengthening and Toughening
摘要
Abstract
Two causes of brittleness of molybdenum are present, i.e. its intrinsic frangibility and the concentration of various impurities in the grain boundary. The main strengthening and toughening technologies of molybdenum, including solid solution strengthening and toughening, molybdenum carbides dispersion strengthening, rare earth oxides dispersion strengthening and toughening,bubble strengthening and toughening, compositing strengthening and toughening technologies, etc,are systematically discussed. And the mechanisms and some representative alloys and current level of development on these technologies are exhibited. The compositing strengthening and toughening technologies would ensure molybdenum alloys with excellent comprehensive mechanical performance. The operation principles, key processes, advantages and disadvantages of the traditional doping methods consisting of solid-solid, liquid-solid and liquid-liquid doping methods and some new alloying technologies(e. g. diffusion deposition, multi-step internal nitriding, etc) are summarized in detail. The traditional doping methods have no desired effect by virtue that those methods can only make the alloy composites physically mixed, it is unable to form some phases with stable composition.关键词
脆性/强韧化/掺杂/钼Key words
Brittleness/ Strengthening and toughening technologies/ Doping/ Molybdenum分类
矿业与冶金引用本文复制引用
冯鹏发,赵虎,杨秦莉,刘仁智,付静波,孙军..钼金属的脆性与强韧化技术研究进展[J].铸造技术,2011,32(4):554-558,5.基金项目
863计划项目(2008AA031002 （）
2007AA03Z517) （）
