世界十大网赌排行榜“材子论坛”暨青年学术沙龙系列报告会第146场成功举办-世界十大网赌排行榜-网赌十大正规网址-信誉平台

今天Prof. M. ROTH的报告会第一部分内容为“Fracture of the head of an artificial hip joint ”。首先Prof. M. ROTH介绍了人造髋关节材料的主要成分，以一个已断裂的人造髋关节为例，讲解了其在使用过程中所受应力状况，并展示了断裂区的EMPA（电子显微探针分析）图，从微观角度上对断裂区的断裂类型进行说明，并且发现造成人造髋关节断裂的原因是由于断裂区存在细微孔洞，而细微孔洞又是由于加工工艺的缺陷所造成。最后Prof. M. ROTH对此还提出了一些改进的建议。如：对制好人造髋关节的内衬进行抛光处理、对内部进行无损检伤等等。

Prof. M. ROTH的第二部分的报告主题为“Novel concepts in joining technology”，首先，教授以日常生活中的轮船叶片、切削刀具为例讲述了在什么情况下，我们会用到这种新型概念的焊接，即：将金属材料和陶瓷材料进行焊接。然后讲述了目前可能在这种情况下应用的焊接方式：硬焊。讲述了其应用条件及注意事项。接着Prof. M. ROTH在金刚石切削刀具制作上的硬焊、蒸汽涡轮叶片的新式涂层法、以纳米尺度的AgCu为硬焊焊料作为多层三明治结构的硬焊填充物三个方面来讲诉新型焊接概念，并且展示了已获得成功的金刚石—陶瓷刀具的焊缝区TEM（透射电镜图）图，讲诉了这种新型焊接方式所具有的有着更高抗疲劳强度、耐高温等优点。最后M. ROTH教授总结了今天讲述的内容并对未来该新型焊接技术的发展进行了一番展望，耐心的回答了在场员工提出的一些问题，分享了自己在材料焊接方面的一些经验。

报告人简介：

Prof. Dr. Manfred Roth
Department of Materials
Swiss Federal Institute of Technology Zurich, Switzerland
Education
1981 Dr. Ing. Materials Science, University of Erlangen, Germany
1978 Dipl. Ing. Materials Science, University of Erlangen, Germany
Diploma thesis: Pore formation in pure iron during creep deformation
Professional Experience
From 2015 Consultant “Advanced Materials”
2009 to 2013 Guest-Professor at Central South University, Changsha, China
2012 to 2014 Senior Scientist, Advanced Materials and Surfaces, Swiss Federal

Laboratories for Materials Testing and Research (Empa), Dubendorf, CH

2004 to 2012 Head of the Laboratory Joining- and Interface Technology, Swiss Federal

Laboratories for Materials Testing and Research (Empa), Dubendorf, CH

1991 to 2004 Head of the Laboratory Surface- and Joining Technology, Swiss Federal

Laboratories for Materials Testing and Research (Empa), Dubendorf, CH

1985 to 1991 Head of the Laboratory Physical Metallurgy/Metallography, Swiss Federal

Laboratories for Materials Testing and Research (Empa), Dubendorf, CH

1982 – 1985 Researcher, BBC Research Center, Baden, Switzerland

- Shot-peening of gas and steam turbine blades

- Material-processing by high power lasers

- Development of a duplex steel with improved corrosion and fatigue properties

Professional Affiliations

1991 – 1998 The Swiss Association for Materials Technology, Member of the Board

Publications

More than 60 scientific/technical publications in international refereed journals; 3 patents; numerous contributions to conferences and other publications.