化学镀法制备的Mo@La2O3合金烧结体微观结构与力学性能
Microstructure and mechanical properties of Mo@La2O3 alloy manufactured by electroless plating method
朱兴治 1高丽平 2管海云 1邢晓玉 1叶松 1黄贞益1
作者信息
- 1. 安徽工业大学冶金工程学院,安徽马鞍山 243000;安徽省低碳冶金与流程控制工程研究中心,安徽马鞍山 243000
- 2. 安徽工业大学冶金工程学院,安徽马鞍山 243000
- 折叠
摘要
为了提升Mo金属的力学性能,采用化学镀法与放电等离子烧结(SPS)方法制备了掺杂质量比2％的Mo@La2O3合金烧结体.结合SEM,EDS,XRD,维氏硬度实验,纳米压痕实验等表征手段,分析了 Mo@La2O3合金烧结体的微观组织与力学性能.结果表明:采用化学镀的方法掺杂La2O3,可以填充Mo基体的孔隙,提高了烧结体的致密度,并细化合金的晶粒.在致密度提升、弥散强化和细晶强化的综合作用下,大幅提升烧结体的硬度、韧性等力学性能.
Abstract
In order to improve the mechanical properties of Molybdenum alloy,the present work manufactured the Mo@La2O3 sintered bulk which contains 2％wt of La2O3 by utilizing electroless plating method together with spark plasma sinter(SPS)technology.Characterizations such as SEM,EDS,XRD,Vicker hardness test and Nano-inden-tation test were selected to analyze the microstructure and mechanical property of Mo@La2O3 sintered bulks.The results show that to dope La2O3 by using electroless plating method,holes in the sintered bulk were filled up,which improved the relative density and refined grains of the alloy.The mechanical properties including hardness and stiff-ness were promoted due to the combined influence of the increasing relative density,grain boundary strengthening and dispersion strengthening mechanism.
关键词
钼/化学镀/放电等离子烧结/维氏硬度/纳米压痕Key words
molybdenum/electroless plating method/park plasma sinter/vickers hardness/nano-indentation引用本文复制引用
基金项目
安徽重大产业创新计划(AHZDCYCX-LSDT2023-01)
出版年
2024
NETL
NSTL
万方数据