Variation of elastic mechanical properties with texture, porosity, and defect characteristics in laser powder bed fusion 316L stainless steel
- 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)
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.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- SC0012704; AC02-06CH11357
- OSTI ID:
- 1570662
- Alternate ID(s):
- OSTI ID: 1630422; OSTI ID: 2325414
- Report Number(s):
- BNL-212142-2019-JAAM; TRN: US2001364
- Journal Information:
- Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing, Vol. 763, Issue C; ISSN 0921-5093
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Forming, fracture and corrosion behaviour of stainless steel 202 sheet formed by single point incremental forming process
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journal | November 2019 |
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