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Title: Method for producing ultrafine-grained materials using repetitive corrugation and straightening

Abstract

A method of refining the grain structure and improving the hardness and strength properties of a metal or metal alloy workpiece is disclosed. The workpiece is subjected to forces that corrugate and then straighten the workpiece. These steps are repeated until an ultrafine-grained product having improved hardness and strength is produced.

Inventors:
 [1];  [2];  [1];  [1]
  1. Los Alamos, NM
  2. Santa Fe, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
873585
Patent Number(s):
6197129
Assignee:
United States of America as represented by United States Department (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C21 - METALLURGY OF IRON C21D - MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
B - PERFORMING OPERATIONS B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL B21J - FORGING
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; producing; ultrafine-grained; materials; repetitive; corrugation; straightening; refining; grain; structure; improving; hardness; strength; properties; metal; alloy; workpiece; disclosed; subjected; forces; corrugate; straighten; steps; repeated; product; improved; produced; metal alloy; grain structure; strength properties; producing ultrafine; /148/72/

Citation Formats

Zhu, Yuntian T, Lowe, Terry C, Jiang, Honggang, and Huang, Jianyu. Method for producing ultrafine-grained materials using repetitive corrugation and straightening. United States: N. p., 2001. Web.
Zhu, Yuntian T, Lowe, Terry C, Jiang, Honggang, & Huang, Jianyu. Method for producing ultrafine-grained materials using repetitive corrugation and straightening. United States.
Zhu, Yuntian T, Lowe, Terry C, Jiang, Honggang, and Huang, Jianyu. Mon . "Method for producing ultrafine-grained materials using repetitive corrugation and straightening". United States. https://www.osti.gov/servlets/purl/873585.
@article{osti_873585,
title = {Method for producing ultrafine-grained materials using repetitive corrugation and straightening},
author = {Zhu, Yuntian T and Lowe, Terry C and Jiang, Honggang and Huang, Jianyu},
abstractNote = {A method of refining the grain structure and improving the hardness and strength properties of a metal or metal alloy workpiece is disclosed. The workpiece is subjected to forces that corrugate and then straighten the workpiece. These steps are repeated until an ultrafine-grained product having improved hardness and strength is produced.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}