Other

Alcoa Inc.

Daniel J Lege

Shawn J Murtha

Yasushi Maeda

Masahiro Yanagawa

Frederic Barlat

John C Brem

Narikazu Hashimoto

Kwansoo Chung

Kuniaki Matsui

Shigeo Hattori

Yasuhiro Hayashida

Yasuhiro Havashida

An Al&mdash;Mg based alloy sheet product in which the crystallographic texture exhibits a ratio of the volume fraction of grains in the S orientation &lcub;123&rcub;<634> to the volume fraction of grains in the CUBE orientation &lcub;100&rcub;<001> (S/Cube) being 1 or more, and is comprised of grains with a volume fraction of about 10% or less in the GOSS orientation &lcub;110&rcub;<001>, wherein the grain size is in a range of about 20 to 100 &mgr;m demonstrates good formability.

A1-mg based alloy sheets with good press formability

Al-Mg based alloy sheets with good press formability

By careful control of composition and processing, Al--Mg based alloy sheets with preferred grain sizes and crystallographic textures that result in good press formability are disclosed. The Al--Mg alloy preferably contains 2-6 wt % Mg, and at least 0.03 wt % of at least one element selected from Fe, Mn, Cr, Zr, and Cu. The crystallographic texture is comprised of grains with a volume fraction in a range of about 5% to 20% in the CUBE orientation {100} &lt;001&gt;, a volume fraction in a range of about 1% to 5% in the GOSS orientation {110} &lt;001&gt;, a volume fraction in a range of about 1% to 10% in each of the BRASS orientation {110} &lt;112&gt;, S orientation {123} &lt;634&gt;, and COPPER orientation {112} &lt;111&gt;, wherein the grain size is in a range of about 20 to 70 .mu.m.

Al--Mg based alloy sheets with good press formability

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West Leechburg, PA, United States of America

Daniel J Lege