Surface layer optimization of copper alloys

被引：0
|
作者：
Pohl, L. [1 ]
Tikana, G. [1 ]
Benkisser [2 ]
Winkel, G. [3 ]
机构：
[1] Ruhr-Universität Bochum, Germany
[2] Universität Rostock, Germany
[3] Institut für Werkstoffkunde an der Universität Rostock auf dem Gebiet der Lasermaterialbearbeitung, Germany
来源：
| 2000年 / Walter de Gruyter GmbH卷 / 55期
关键词：
Aluminum alloys - Aluminum corrosion - Copper alloys - Copper corrosion - Corrosion resistance - Iron alloys - Manganese alloys - Melting - Nickel alloys - Wear of materials - Wear resistance;
D O I：
10.1515/htm-2000-550110
中图分类号：
学科分类号：
摘要：
Complex aluminium bronzes (Cu-Al-Ni-Fe, Cu-Al-Mn-Fe-Ni alloy systems) are used for manufacturing prefabricated parts which Must have a high resistance against wear and corrosion apart from high mechanical properties. Despite the favourable combination of mechanical properties and surface properties, the surface damages of these materials, which are caused by the ose during operation, cannot be avoided. The extent of these tíamages determine the duration life of the workpieces. The high resistance o f the alloys against wear and corrosion is only demanded by the surface. Therefore, it seems to be useful to fulfill the solicitation of the prefabricated parts by using a surface treated material. In the present paper, the surface melting w is effected by means of a laser beam. The maximum value of the hardening turned out to be determined by the transformation behaviour of the alloy. The surface melting with laser beam partly optimised the corrosion properties and improved especially the cavitation erosion behaviour. © 2000 Carl Hanser Verlag. All rights reserved.
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