Variation of elastic mechanical properties with texture, porosity, and defect characteristics in laser powder bed fusion 316L stainless steel
Abstract
Elastic mechanical properties of 316 L stainless steel samples fabricated using laser powder bed fusion were studied non-destructively through resonant ultrasound spectroscopy. Samples in five different conditions were obtained by varying the laser power from 103 W (the highest density condition) to 68 W (the lowest density condition) at constant laser speed, producing samples with a volume energy density in the 24.5-16.5 J/mm(3) range and volumetric porosity in the 0.1-10% range. The observed elastic mechanical properties are discussed taking into consideration the bulk texture developed and quantitative pore characteristics studied using high-energy high-resolution synchrotron X-ray diffraction and X-ray computed micro-tomography, respectively. Furthermore, empirical exponential relationships are provided to express the functional dependence of Young's and shear moduli with porosity.
- Authors:
-
- Y-12 National Security Complex, Oak Ridge, TN (United States)
- Univ. of Tennessee, Knoxville, TN (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1570662
- Alternate Identifier(s):
- OSTI ID: 1630422; OSTI ID: 2325414
- Report Number(s):
- BNL-212142-2019-JAAM
Journal ID: ISSN 0921-5093; TRN: US2001364
- Grant/Contract Number:
- SC0012704; AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
- Additional Journal Information:
- Journal Volume: 763; Journal Issue: C; Journal ID: ISSN 0921-5093
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Resonant ultrasound spectroscopy (RUS); Elastic mechanical properties; X-ray synchrotron micro-tomography and diffraction; Porosity and texture; Stainless steel; Laser powder bed fusion
Citation Formats
Garlea, E., Choo, H., Sluss, C. C., Koehler, M. R., Bridges, R. L., Xiao, Xianghui, Ren, Y., and Jared, B. H. Variation of elastic mechanical properties with texture, porosity, and defect characteristics in laser powder bed fusion 316L stainless steel. United States: N. p., 2019.
Web. doi:10.1016/j.msea.2019.138032.
Garlea, E., Choo, H., Sluss, C. C., Koehler, M. R., Bridges, R. L., Xiao, Xianghui, Ren, Y., & Jared, B. H. Variation of elastic mechanical properties with texture, porosity, and defect characteristics in laser powder bed fusion 316L stainless steel. United States. https://doi.org/10.1016/j.msea.2019.138032
Garlea, E., Choo, H., Sluss, C. C., Koehler, M. R., Bridges, R. L., Xiao, Xianghui, Ren, Y., and Jared, B. H. Mon .
"Variation of elastic mechanical properties with texture, porosity, and defect characteristics in laser powder bed fusion 316L stainless steel". United States. https://doi.org/10.1016/j.msea.2019.138032. https://www.osti.gov/servlets/purl/1570662.
@article{osti_1570662,
title = {Variation of elastic mechanical properties with texture, porosity, and defect characteristics in laser powder bed fusion 316L stainless steel},
author = {Garlea, E. and Choo, H. and Sluss, C. C. and Koehler, M. R. and Bridges, R. L. and Xiao, Xianghui and Ren, Y. and Jared, B. H.},
abstractNote = {Elastic mechanical properties of 316 L stainless steel samples fabricated using laser powder bed fusion were studied non-destructively through resonant ultrasound spectroscopy. Samples in five different conditions were obtained by varying the laser power from 103 W (the highest density condition) to 68 W (the lowest density condition) at constant laser speed, producing samples with a volume energy density in the 24.5-16.5 J/mm(3) range and volumetric porosity in the 0.1-10% range. The observed elastic mechanical properties are discussed taking into consideration the bulk texture developed and quantitative pore characteristics studied using high-energy high-resolution synchrotron X-ray diffraction and X-ray computed micro-tomography, respectively. Furthermore, empirical exponential relationships are provided to express the functional dependence of Young's and shear moduli with porosity.},
doi = {10.1016/j.msea.2019.138032},
journal = {Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing},
number = C,
volume = 763,
place = {United States},
year = {Mon Jun 17 00:00:00 EDT 2019},
month = {Mon Jun 17 00:00:00 EDT 2019}
}
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