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Title: Dislocation substructures in high-energy-rate-forged and press-formed 21-6-9 stainless steel

Abstract

A Transmission Electron Microscope (TEM) was used to establish that the substructure of press formed (PF) 21-6-9 stainless steel toroids was characterized by a dislocation cell size finer, about 0.16 ..mu..m, than that of about 0.29 ..mu..m, of high-energy-rate-formed (HERF) processed toroids. In addition, HERF processed material showed areas of a coarser, well-developed subgrain structure characteristic of hot work deformation. The formation of the substructures, as-well-as the grain size and carbide distributions of the toroids produced by the two processing techniques, are discussed in terms of the various operations, temperatures, and strain rates associated with the two different processing schedules. The Press-Formed toroid had a higher yield strength than the HERF processed toroid which was attributed to the finer cell size of the PF processed toroid.

Authors:
; ; ;
Publication Date:
Research Org.:
Atomics International Div., Golden, CO (USA). Rocky Flats Plant
OSTI Identifier:
6535195
Report Number(s):
RFP-2743
TRN: 79-000253
DOE Contract Number:
EY-76-C-04-3533
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; STAINLESS STEELS; COLD WORKING; HOT WORKING; AUSTENITIC STEELS; DISLOCATIONS; FORGING; GRAIN SIZE; MICROSTRUCTURE; ALLOYS; CHROMIUM ALLOYS; CORROSION RESISTANT ALLOYS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; FABRICATION; IRON ALLOYS; IRON BASE ALLOYS; LINE DEFECTS; MATERIALS WORKING; SIZE; STEELS; 360101* - Metals & Alloys- Preparation & Fabrication

Citation Formats

Sanderson, E.C., Brewer, A.W., Krenzer, R.W., and Krauss, G. Dislocation substructures in high-energy-rate-forged and press-formed 21-6-9 stainless steel. United States: N. p., 1978. Web. doi:10.2172/6535195.
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Sanderson, E.C., Brewer, A.W., Krenzer, R.W., & Krauss, G. Dislocation substructures in high-energy-rate-forged and press-formed 21-6-9 stainless steel. United States. doi:10.2172/6535195.
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Sanderson, E.C., Brewer, A.W., Krenzer, R.W., and Krauss, G. Mon . "Dislocation substructures in high-energy-rate-forged and press-formed 21-6-9 stainless steel". United States. doi:10.2172/6535195. https://www.osti.gov/servlets/purl/6535195.
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@article{osti_6535195,
title = {Dislocation substructures in high-energy-rate-forged and press-formed 21-6-9 stainless steel},
author = {Sanderson, E.C. and Brewer, A.W. and Krenzer, R.W. and Krauss, G.},
abstractNote = {A Transmission Electron Microscope (TEM) was used to establish that the substructure of press formed (PF) 21-6-9 stainless steel toroids was characterized by a dislocation cell size finer, about 0.16 ..mu..m, than that of about 0.29 ..mu..m, of high-energy-rate-formed (HERF) processed toroids. In addition, HERF processed material showed areas of a coarser, well-developed subgrain structure characteristic of hot work deformation. The formation of the substructures, as-well-as the grain size and carbide distributions of the toroids produced by the two processing techniques, are discussed in terms of the various operations, temperatures, and strain rates associated with the two different processing schedules. The Press-Formed toroid had a higher yield strength than the HERF processed toroid which was attributed to the finer cell size of the PF processed toroid.},
doi = {10.2172/6535195},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jul 24 00:00:00 EDT 1978},
month = {Mon Jul 24 00:00:00 EDT 1978}
}
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Technical Report:
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DOI:  10.2172/6535195
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