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Title: Preparation of nanostructured materials having improved ductility

Abstract

A method for preparing a nanostructured aluminum alloy involves heating an aluminum alloy workpiece at temperature sufficient to produce a single phase coarse grained aluminum alloy, then refining the grain size of the workpiece at a temperature at or below room temperature, and then aging the workpiece to precipitate second phase particles in the nanosized grains of the workpiece that increase the ductility without decreasing the strength of the workpiece.

Inventors:
;
Issue Date:
Research Org.:
Los Alamos National Security, LLC, Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176241
Patent Number(s):
7699946
Application Number:
11/438,929
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM)
Patent Classifications (CPCs):
C - CHEMISTRY C22 - METALLURGY C22F - CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Zhao, Yonghao, and Zhu, Yuntian T. Preparation of nanostructured materials having improved ductility. United States: N. p., 2010. Web.
Zhao, Yonghao, & Zhu, Yuntian T. Preparation of nanostructured materials having improved ductility. United States.
Zhao, Yonghao, and Zhu, Yuntian T. Tue . "Preparation of nanostructured materials having improved ductility". United States. https://www.osti.gov/servlets/purl/1176241.
@article{osti_1176241,
title = {Preparation of nanostructured materials having improved ductility},
author = {Zhao, Yonghao and Zhu, Yuntian T.},
abstractNote = {A method for preparing a nanostructured aluminum alloy involves heating an aluminum alloy workpiece at temperature sufficient to produce a single phase coarse grained aluminum alloy, then refining the grain size of the workpiece at a temperature at or below room temperature, and then aging the workpiece to precipitate second phase particles in the nanosized grains of the workpiece that increase the ductility without decreasing the strength of the workpiece.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 20 00:00:00 EDT 2010},
month = {Tue Apr 20 00:00:00 EDT 2010}
}

Works referenced in this record:

High tensile ductility in a nanostructured metal
journal, October 2002


Deformation behavior and plastic instabilities of ultrafine-grained titanium
journal, July 2001


Theory of the tensile test
journal, February 1967


Transition of deformation and fracture behaviors in nanostructured face-centered-cubic metals
journal, May 2004


Ultratough nanocrystalline copper with a narrow grain size distribution
journal, August 2004


Strain hardening and large tensile elongation in ultrahigh-strength nano-twinned copper
journal, November 2004


Mechanical properties of nanocrystalline copper produced by solution-phase synthesis
journal, February 1996


Nanostructuring of metals by severe plastic deformation for advanced properties
journal, August 2004


Paradox of Strength and Ductility in Metals Processed Bysevere Plastic Deformation
journal, January 2002


The Mechanism of Plastic Deformation of Crystals. Part I. Theoretical
journal, July 1934


Achieving High Strength and High Ductility in Precipitation-Hardened Alloys
journal, July 2005


Structure characteristics of nanocrystalline element selenium with different grain sizes
journal, December 1997


Tough Nanostructured Metals at Cryogenic Temperatures
journal, February 2004


Temperature and strain rate effects on the strength and ductility of nanostructured copper
journal, October 2003