摘要
采用球磨法、固-液合成法结合粉末冶金工艺制备了Mo-ZrO_(2)合金,并进行了抗玻璃熔液侵蚀试验,研究了ZrO_(2)掺杂量对合金组织及其抗玻璃熔液侵蚀性能的影响。结果表明,ZrO_(2)对钼晶粒细化明显,且在高温玻璃熔液侵蚀下,阻碍钼晶粒长大;掺杂ZrO_(2)使玻璃熔液侵蚀深度大幅度的降低;界面形貌分析表明,Mo-ZrO_(2)合金良好的抗玻璃熔液侵蚀性能得益于钼基体与第二相颗粒ZrO_(2)间抗侵蚀的“协同效应”,ZrO_(2)钉扎了晶界从而细化了基体金属的晶粒,阻挡玻璃熔液对钼基体的侵蚀,钼基体支撑ZrO_(2)颗粒,防止陶瓷相剥落。
Mo-ZrO_(2)alloy was prepared by ball milling,solid-liquid synthesis and powder metallurgy,and the molten glass erosion resistance test was carried out.The effect of amount of addition of ZrO_(2)on the molten glass erosion resistance of the Mo-ZrO_(2)alloy was studied.The results show that ZrO_(2)significantly refines molybdenum grains,and hinders the growth of molybdenum grains under the erosion of high temperature glass melt.Doping ZrO_(2)greatly reduces the erosion depth of glass melt.The interfacial morphology analysis shows that the good resistance to glass melt erosion of Mo-ZrO_(2)alloy is due to the“synergistic effect”between the molybdenum matrix and the second phase particle ZrO_(2).ZrO_(2)cements the grain boundary with the molybdenum matrix to prevent the erosion of glass melt on the molybdenum matrix,and the molybdenum matrix supports the ZrO_(2)particles to prevent the spalling of ceramic phase.
作者
姚丽莹
高义民
黄一杰
YAO Liying;GAO Yimin;Huang Yijie(State Key Laboratory for Mechanical Behavior of Materials,School of Materials Science and Engineering,Xi'an Jiaotong University,Xi'an 710049,China)
出处
《铸造技术》
CAS
2022年第6期423-426,共4页
Foundry Technology
基金
2021年度国家重点研发计划(2021YFB3701204)
广东省重点领域研发计划(2019B010942001)
广西创新驱动发展专项资金项目(桂科AA18242001)。
