粉末冶金技术2025，Vol.43Issue(2)：233-238,247,7.DOI:10.19591/j.cnki.cn11-1974/tf.2023110013
氧化物掺杂对钼铼合金板材力学性能的影响
Effect of oxide doping on mechanical properties of molybdenum‒rhenium alloy plates
摘要
Abstract
The La2O3 and ZrO2 were doped in the molybdenum‒rhenium alloys,the effects of oxide doping on the relative density of the sintered billets and the mechanical properties of the final rolled plates at room temperature were studied in this paper.The results show that,the doped oxide can significantly reduce the particle size of the alloy powders.The grain size of molybdenum‒rhenium alloys doped with ZrO2 is the smallest,but the relative density of the sintered billets is reduced due to the crystalline phase transformation.The rolling deformation can improve the hardness and strength of the alloy plates,the molybdenum‒rhenium alloys doped with La2O3 can obtain the higher strength with the plasticity almost unchanged,while the molybdenum‒rhenium alloys doped with ZrO2 show the increase of strength but the decrease of plasticity.The tensile strength and yield strength of the molybdenum‒rhenium alloys doped with ZrO2 are the highest,which are 1034 MPa and 888.2 MPa,respectively.关键词
钼铼合金/稀土氧化物/陶瓷氧化物/弥散强化/力学性能Key words
molybdenum rhenium alloys/rare earth oxides/ceramic oxides/dispersion strengthening/mechanical properties分类
矿业与冶金引用本文复制引用
王广达,熊宁,况春江..氧化物掺杂对钼铼合金板材力学性能的影响[J].粉末冶金技术,2025,43(2):233-238,247,7.基金项目
国家重点研发计划专项资助项目(2022YFB3705400) （2022YFB3705400）
