Heat Resistant Aluminum Base Alloy

Международная заявка PCT/RU2012/001027

Дата конвенционного приоритета 06.12.2012

Конвенционная заявка RU2013102128

Дата подачи конвенционной заявки 18.01.2013

Название Heat Resistant Aluminum Base Alloy and Wrought Semifinished Product Fabrication Method (Термостойкий сплав на основе алюминия и способ получения из него деформированных полуфабрикатов)

Авторы Белов Н.А., Алабин А.Н.

Реферат This invention relates to metallurgy, more specifically, to wrought aluminum base alloys, and can be used for the fabrication of products with up to 350°C working temperature range. The technical result achieved in the first and second objects of this invention is providing a new heat resistant aluminum base alloy the wrought semifinished products of which (sheets, rods, wire, die forgings products or pipes) have high strength, heat resistance and electrical conductivity. The method of fabricating wrought semifinished products from said aluminum base alloy comprises producing a melt of the alloy and fabricating a cast piece by solidifying said alloy, these operations being carried out at a temperature that is at least 50°C above the liquidus tem-perature. The intermediate wrought semifinished product is obtained by deforming said cast piece at a temperature of within 350°C in two stages with an intermediate 340-450°C anneal. Then the intermediate wrought semifinished product is annealed at 340-450°C, and wrought semifinished product is obtained by deforming the intermediate wrought semifinished product at room temperature. Finally the wrought semifinished product is annealed at 300-400°C.