摘要
铸造烧结法制备ZTA陶瓷颗粒增强高铬铸铁基复合材料工艺过程中,ZTA陶瓷增强体的性能演变直接关系到复合材料的综合性能。本文研究了铸造烧结工艺对ZTA陶瓷组分和力学性能的影响,对比了热处理态ZTA陶瓷与高铬铸铁的三体磨损性能。结果表明:铸造烧结各工艺段,ZTA陶瓷都由t-ZrO_2相、α-Al_2O_3相和少量m-ZrO_2相组成,铸造烧结工艺对ZTA陶瓷密度影响较小,但对抗弯强度和硬度的影响较大;热处理态ZTA陶瓷硬度是高铬铸铁的2.65倍,三体磨料磨损性能是高铬铸铁的1.52倍。
The effects of casting sintering process on components and mechanical properties of ZTA ceramic were studied,and the three-body abrasive wear property of ZTA ceramic was compared with high-chromium iron. The results show that ZTA ceramic is composed of t-ZrO2, α-Al2O3, m-ZrO2 in the process of casting sintering process. The influence of sintering process on the density of ZTA ceramic is smaller, however on bending strength is bigger. The hardness of ZTA ceramic is 2.65 times that of high-chromium cast iron, and the three-body abrasive wear property is 1.52 times that of high-chromium cast iron.
出处
《铸造技术》
CAS
北大核心
2017年第1期39-42,共4页
Foundry Technology
基金
广州市重点实验室建设资助项目(201509010003)
广东省科技基础条件建设资助项目(2014B030301012)
广东省社会发展领域资助项目(2014B020216008)
广东省产学研合作项目资助(2016B090918072)
广东省公益研究与能力建设专项资助项目(2015B070701026)
关键词
铸造烧结
ZTA陶瓷
组分
力学性能
三体磨损
casting sintering
ZTA ceramic
components
mechanical properties
three-body abrasive wear
