High Density Plasma Nitriding of Al-Cu Alloys for Automotive Parts  

作　　者：Tatsuhiko Aizawa Shinji Muraishi Yoshio Sugita 

机构地区：[1]Department of Engineering and Design, Shibaura Institute of Technology, Tokyo 108-8548, Japan [2]Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo, Japan [3]YS-Electrical Industry, Co. Ltd., Koufu 400-0043, Japan

出　　处：《Journal of Physical Science and Application》2014年第4期255-261,共7页物理科学与应用（英文版）

摘　　要：Duralumin alloys have been utilized as structural components and parts for aircrafts, train-cars and so forth. Their high specific strength was attractive to those applications; however, their little corrosion resistance and low wear endurance became a fatal demerit in practical applications. In order to overcome these issues of high strength aluminum alloys, high density plasma nitriding is proposed as an effective surface treatment for duralumin. This process has a capability to control the RF- and DC-plasmas independently for nitriding. This enables us to temporally control and describe the plasma state by in-situ plasma diagnosis. This plasma diagnosis was instrumented to search for optimum processing condition to plasma nitriding the duralumin alloys of type A2011. Both type A2011 aluminum alloy plates and pipes were employed to describe the inner nitriding behavior for hardening the duralumin alloys by the present plasma nitriding.

关 键 词：Duralumin alloys A2011 high density plasma nitrding AIN precipitation HARDENING PLATES PIPES heat sink. 

分 类 号：TG156.82[金属学及工艺—热处理] U463[金属学及工艺—金属学]