MACHINE COMPONENT AND EXTRUDED MATERIAL

Title:

MACHINE COMPONENT AND EXTRUDED MATERIAL

Document Type and Number:

WIPO Patent Application WO/2018/037810

Kind Code:

A1

Abstract:

A machine component characterized by comprising an aluminium alloy containing 8.0-14.0 mass% of Zn, 2.0-4.0 mass% of Mg, 0.5-2.0 mass% of Cu, 0.2-1.5 mass% of Mn and 0.05-0.3 mass% of Zr, with the remainder being Al and unavoidable impurities, wherein the mean particle diameter of the fine particles within the crystal grains measured by small-angle X-ray scattering is 2-7 nm, the normalized dispersion of the particle size distribution is no more than 45%, the tensile strength is 800 MPa or higher, and the total elongation is 5% or more.

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Inventors:

ARUGA YASUHIRO
KOCHI TAKUYA
TOYOTAKE KOTARO

Application Number:

PCT/JP2017/026693

Publication Date:

March 01, 2018

Filing Date:

July 24, 2017

Export Citation:

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Assignee:

KOBE STEEL LTD (JP)
SHINKO METAL PROD (JP)

International Classes:

C22C21/10; C22F1/053

Domestic Patent References:

WO2014046046A1	2014-03-27
WO2017126413A1	2017-07-27

Foreign References:

JP2014125676A	2014-07-07
CN101215659A	2008-07-09
JPS61259828A	1986-11-18
JPS61108416A	1986-05-27

Attorney, Agent or Firm:

SAMEJIMA, Mutsumi et al. (JP)

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