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

Patent · Mon Jan 01 00:00:00 EST 2001

OSTI ID:873585

Zhu, Yuntian T ^[1]; Lowe, Terry C ^[2]; Jiang, Honggang ^[1]; Huang, Jianyu ^[1]

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1. Los Alamos, NM
2. Santa Fe, NM

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.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States of America as represented by United States Department (Washington, DC)
• Patent Number(s): US 6197129
• OSTI ID: 873585
• Country of Publication: United States
• Language: English

Related Subjects

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
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