皇家墨尔本理工大学陈晓博博士学术报告通知
时间:2017-12-5 0:46:21   阅读:   标签: 皇家墨尔本理工大学 学术报告 陈晓博博士

应哈工大材料学院王晓军副教授邀请,皇家墨尔本理工大学陈晓博博士2017128日来我校访问并做学术报告,欢迎感兴趣的师生届时参加。

 

人:陈晓博 博士

报告题目:Advanced Coating Technologies for Magnesium Alloys      

报告地点:哈工大材料学院楼521会议室

报告时间:2017128(周五)下午2:30

 

陈晓博 博士于2009年获得澳大利亚Deakin大学博士学位。200920173月在澳大利亚Monash大学材料科学与工程系腐蚀及表面科学实验室从事博士后以及独立研究工作。20173月起作为校长特聘研究员(Tenure Tracked)加入墨尔本皇家理工大学(RMIT University)工程学院,并开始组建覆盖腐蚀、表面工程以及新型高效功能材料等研究领域的课题组。陈晓博 博士多年来一直从事金属表面处理和镁合金材料腐蚀防护的前沿研究工作,并已经表了超过80SCI研究论文和国际专著3章,共被引用超过1500H因子达到23。在博士后工作结束后,做为独立项目责任人,分别获得澳大利亚联邦政府研究理事会(ARC)资助的优秀青年研究计划(DECRA Fellowship)、(ARC Linkage)应用研究项目、以及多项(宝钢集团澳洲研发中心、三菱重工等)企业资助的研究项目。

 

Advanced Coating Technologies for Magnesium Alloys

Abstract: Utilisation of light-weight magnesium (Mg) alloys as engineering materials is limited due to their high affinity for oxygen and water, and hence vulnerability to corrosion. Many efforts have been attempted to address the corrosion issue of Mg alloys to pave a path for wider implementation of Mg in various applications, such as automotive, airplane, electronic devices and biomaterials.

There are two straightforward methodologies to suppress corrosion progress of Mg alloys. Addition of alloying elements, such as Al, Zn and even As, into the bulk Mg matrix which may lead to favorable microstructure, grain size or kinetic restriction to corrosion kinetics (with attendant changes in properties and cost). The other intensively exploited approach is applying stable and inert coatings onto the surface of Mg alloys as a barrier to provide protection functionality. Compared to alloying, surface properties will be altered rather than the fundamental properties of the bulk materials and desirable protection can be obtained by means of simply and efficient processing procedures.

The most successful commercial coatings are chromate based, however, the extreme carcinogenicity to organisms and environments has led to a strict ban on the utilisation of chromate coatings globally. Therefore, there is an urgent need to develop alternative coatings to tackle the corrosion issue of Mg alloys as chromate did. Herein, we introduce some advanced techniques to develop coatings onto Mg alloys to perform either as a barrier or functional coating in order to address the corrosion of Mg. The coating characteristics, formation mechanism and their specific roles in corrosion protection will be presented and discussed. In addition, a novel pretreatment method will be introduced to demonstrate its vital role in generating a homogenous surface condition that is favorable for subsequent growth of desirable coatings. 

 

发布:段彬彬 |  审核:何鹏 |  来源: 材料学院