摘要
为了研究ZrO_(2)(Y_(2)O_(3))含量对Mo-12Si-8.5B-ZrO_(2)(Y_(2)O_(3))复合材料高温氧化性能的影响,利用机械合金化与放电等离子烧结制备了ZrO_(2)(Y_(2)O_(3))含量为0~10 mass%的Mo-12Si-8.5B-ZrO_(2)(Y_(2)O_(3))复合材料,研究了其在800、1000和1200℃下的高温氧化行为。结果表明:复合材料在800℃时均发生显著氧化,质量损失持续增加;随着ZrO_(2)(Y_(2)O_(3))含量的增加,氧化质量损失速度降低,复合材料的抗氧化能力提升;低ZrO_(2)(Y_(2)O_(3))含量(0~2.5 mass%)的复合材料在1000和1200℃下具备优异的抗氧化性;高ZrO_(2)(Y_(2)O_(3))含量(5~10 mass%)的复合材料在1000℃下氧化严重,在1200℃发生灾难性氧化。
In order to investigate the effect of ZrO_(2)(Y_(2)O_(3))content on high temperature oxidation properties of Mo-12Si-8.5B-ZrO_(2)(Y_(2)O_(3))composites,the Mo-12Si-8.5B-ZrO_(2)(Y_(2)O_(3))composites with ZrO_(2)(Y_(2)O_(3))content of 0-10 mass%were prepared using mechanical alloying and spark plasma sintering,and their high temperature oxidation behaviors at 800,1000 and 1200℃ were studied.The results show that the composites undergo significant oxidation at 800℃,and the mass loss continues to increase.With the increase of ZrO_(2)(Y_(2)O_(3))content,the rate of oxidation mass loss decreases,and the oxidation resistance of the composites increases.The composites with low ZrO_(2)(Y_(2)O_(3))content(0-2.5 mass%)exhibit excellent oxidation resistance at 1000 and 1200℃,while the composites with high ZrO_(2)(Y_(2)O_(3))content(5-10 mass%)undergo severe oxidation at 1000℃ and catastrophic oxidation at 1200℃.
作者
吴吉文
颜建辉
汪异
邱敬文
WU Ji-wen;YAN Jian-hui;WANG Yi;QIU Jing-wen(School of Mechanical Engineering,Hunan University of Science and Technology,Xiangtan 411201,China;Hunan Provincial Key Defense Laboratory of High Temperature Wear Resisting Materials and Preparation Technology,Hunan University of Science and Technology,Xiangtan 411201,China;School of Materials Science and Engineering,Hunan University of Science and Technology,Xiangtan 411201,China)
出处
《材料热处理学报》
CAS
CSCD
北大核心
2023年第7期39-47,共9页
Transactions of Materials and Heat Treatment
基金
国家自然科学基金(52175167)
河南科技大学高端轴承摩擦学技术与应用国家地方联合工程实验室开放基金资助(202203)
湖南省教育厅项目(22C0259)。
