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1. (WO2018104004) METHOD OF MANUFACTURING A WEAR-RESISTANT ALUMINIUM ALLOY PLATE PRODUCT

Pub. No.:    WO/2018/104004    International Application No.:    PCT/EP2017/079034
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Tue Nov 14 00:59:59 CET 2017
IPC: C22C 21/06
C22F 1/047
Applicants: ALERIS ROLLED PRODUCTS GERMANY GMBH
Inventors: BACH, Andreas Harald
JACOBY, Bernd
BÜRGER, Achim
Title: METHOD OF MANUFACTURING A WEAR-RESISTANT ALUMINIUM ALLOY PLATE PRODUCT
Abstract:
The invention relates to a method of manufacturing a rolled wear-resistant aluminium alloy product comprising the steps of: (a) providing a rolling feedstock material of an aluminium alloy having Mg 4.20% to 5.5%, Mn 0.50% to 1.1%, Fe up to 0.40%, Si up to0.30%, Cu up to 0.20%, Cr up to 0.25%, Zr up to 0.25%, Zn up to 0.30%, Ti up to 0.25%, unavoidable impurities and balance aluminium; (b) heating the rolling feedstock; (c) hot-rolling of the feedstock to an intermediate gauge in a range of 15 mm to 40 mm;(d) hot-rolling of the feedstock from intermediate gauge to a finalgauge in a range of 3 mm to 15 mm and wherein the hot-mill exit temperature is in a range of 130-285°C; (e) cooling of the hot-rolled feedstock to ambient temperature.