大连理工大学主页平台管理系统付雪松 Corrosion Behavior and Microstructure of 2024 Aluminum Alloy Sheets by Shot Peen Forming in a Salt Spray Environment 中文主页

论文成果

Interfacial microstructure and mechanical properties of the superplastically joined TiO2-doped ZTA ceramics: 点击次数：; 发布时间： 2020-03-06; 发布时间：2020-03-06; 论文类型：期刊论文; 发表时间：2020-03-27; 发表刊物：MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING; 收录刊物：SCIE、EI; 卷号：779; ISSN号：0921-5093; 关键字：Superplastic joining; Zirconia toughened alumina; TiO2 doping; Fracture microscopy; 摘要：The superplastic joining experiments of the x wt.% TiO2-doped ZTA (zirconia toughened alumina) composite ceramics (x = 0, 1, 4 and 8) were conducted at 1300 degrees C in this study. The interfacial microstructures showed that, with the increase of the TiO2 amount, the macro/micro-sized cavities, cracks, and the welding line at the joined interface were reduced gradually and finally eliminated. Moreover, the shear strength and joint efficiency of the ZTA joints were enhanced from 21.2 MPa/8.8% to 74.5 MPa/29.9%, 145.6 MPa/64.2% and 187.6 MPa/92.0% by doping 1 wt%, 4 wt% and 8 wt% TiO2 dopant, respectively. Based on the interfacial microstructure and fracture micmtopography of the TiO2-doped ZTA joints, the results were discussed in terms of the relationship between fracture mode and TiO2 amount.

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副教授博士生导师硕士生导师

性别：男

毕业院校：大连理工大学

学位：博士

所在单位：材料科学与工程学院

学科：材料加工工程

办公地点：大连理工大学铸造中工程心

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