Experiments and modeling to characterize microstructure and hardness in 304L
Abstract
Drawn 304L stainless steel tubing was subjected to 42 different annealing heat treatments with the goal of initializing a microstructural model to select a heat treatment to soften the tubing from a hardness of 305 Knoop to 225–275 Knoop. The amount of recrystallization and grain size caused by 18 heat treatments were analyzed via optical microscopy and image analysis, revealing the full range of recrystallization from 0 to 100%. The formation of carbides during the longer duration and higher-temperature heat treatments was monitored via transmission electron microscope evaluation. The experimental results informed a model which includes recovery, recrystallization, and grain growth to predict microstructure and hardness. After initialization of the model, it was able to predict hardness with a R2 value of 0.95 and recrystallization with an R2 value of 0.99. As a result, the model was then utilized in the design and testing of a heat treatment to soften the tubing.
- Authors:
-
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1340271
- Report Number(s):
- SAND-2016-12873J
Journal ID: ISSN 2192-9262; 650084
- Grant/Contract Number:
- AC04-94AL85000
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Metallography, Microstructure and Analysis
- Additional Journal Information:
- Journal Volume: 6; Journal Issue: 1; Journal ID: ISSN 2192-9262
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; recrystallization; stainless steel; microstructure; modeling
Citation Formats
Deibler, Lisa Anne, Brown, Arthur, and Puskar, Joseph D. Experiments and modeling to characterize microstructure and hardness in 304L. United States: N. p., 2017.
Web. doi:10.1007/s13632-017-0335-z.
Deibler, Lisa Anne, Brown, Arthur, & Puskar, Joseph D. Experiments and modeling to characterize microstructure and hardness in 304L. United States. https://doi.org/10.1007/s13632-017-0335-z
Deibler, Lisa Anne, Brown, Arthur, and Puskar, Joseph D. Thu .
"Experiments and modeling to characterize microstructure and hardness in 304L". United States. https://doi.org/10.1007/s13632-017-0335-z. https://www.osti.gov/servlets/purl/1340271.
@article{osti_1340271,
title = {Experiments and modeling to characterize microstructure and hardness in 304L},
author = {Deibler, Lisa Anne and Brown, Arthur and Puskar, Joseph D.},
abstractNote = {Drawn 304L stainless steel tubing was subjected to 42 different annealing heat treatments with the goal of initializing a microstructural model to select a heat treatment to soften the tubing from a hardness of 305 Knoop to 225–275 Knoop. The amount of recrystallization and grain size caused by 18 heat treatments were analyzed via optical microscopy and image analysis, revealing the full range of recrystallization from 0 to 100%. The formation of carbides during the longer duration and higher-temperature heat treatments was monitored via transmission electron microscope evaluation. The experimental results informed a model which includes recovery, recrystallization, and grain growth to predict microstructure and hardness. After initialization of the model, it was able to predict hardness with a R2 value of 0.95 and recrystallization with an R2 value of 0.99. As a result, the model was then utilized in the design and testing of a heat treatment to soften the tubing.},
doi = {10.1007/s13632-017-0335-z},
journal = {Metallography, Microstructure and Analysis},
number = 1,
volume = 6,
place = {United States},
year = {Thu Jan 12 00:00:00 EST 2017},
month = {Thu Jan 12 00:00:00 EST 2017}
}
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Works referencing / citing this record:
Microstructural Evolutions During Reversion Annealing of Cold-Rolled AISI 316 Austenitic Stainless Steel
journal, March 2018
- Naghizadeh, Meysam; Mirzadeh, Hamed
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