Title:
HEAT RESISTANT ALUMINUM ALLOY EXCELLENT IN TOUGHNESS AND FATIGUE STRENGTH
Document Type and Number:
Japanese Patent JPH0641666
Kind Code:
A
Abstract:
PURPOSE: To develop a heat resistant Al allay excellent in toughness and fatigue strength by adding specified ratios of Si, Fe, Cu, Mg and other metallic elements to Al.
CONSTITUTION: By the Al alloy obtd. by incorporating Al with, by weight, 15 to 25% Si, 3.5 to 6.5% Fe, 0.4 to 1-2% Cu and 0.2 to 0.7% Mg and furthermore with total 0.6 to 2.0% of one or more kinds among Zr, V and Mo, a light alloy material for apparatus requiring heat resistance such as engine parts in which the average grain diameter of Si grains in the structure is regulated to 5μm or smaller as well as the average distance of the grains is regulated to 10μm or shorter and excellent in toughness and fatigue strength can be obtd.
Inventors:
KIKUCHI AKIO
SANO HIDEO
OKUBO YOSHIMASA
MIZUKOSHI HIDEO
SANO HIDEO
OKUBO YOSHIMASA
MIZUKOSHI HIDEO
Application Number:
JP21820492A
Publication Date:
February 15, 1994
Filing Date:
July 24, 1992
Export Citation:
Assignee:
SUMITOMO LIGHT METAL IND
International Classes:
C22C21/02; (IPC1-7): C22C21/02
Attorney, Agent or Firm:
Fukuda Yasuo
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