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The influence of pearlite fraction on the shock properties of ferrite–pearlite steel microstructures: Insight into the effect of second-phase particles.
- Source :
-
Journal of Applied Physics . 3/21/2022, Vol. 131 Issue 11, p1-11. 11p. - Publication Year :
- 2022
-
Abstract
- The goal of this work is to investigate the effect of varying phase fractions on the overall spall strength and damage behavior of a material. Specifically, two plain carbon, ferrite–pearlite steels (1045 and A283) were subjected to spall recovery experiments to investigate the effect of pearlite fraction on spall strength and total damage. The A283 (20% pearlite) alloy exhibited a higher Hugoniot elastic limit and spall strength compared with 1045 (60% pearlite). Discontinuous and continuous yielding behaviors were observed at quasi-static and dynamic rates for A283 and 1045, respectively. The yielding behavior was connected to pearlite fraction and the prevalence of dislocation-emitting, ferrite/cementite interfaces. Postmortem characterization revealed cementite lamellae cracking within pearlite of 1045, suggesting that pearlite reduces spall strength by providing low-energy damage nucleation sites. The rate of damage growth and coalescence was similar between the two alloys; however, 1045 exhibited more continuous cracks than A283, which exhibited a greater prevalence of discrete voids. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CEMENTITE
*YIELD strength (Engineering)
*MICROSTRUCTURE
*STEEL
*ALLOYS
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 131
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 155885216
- Full Text :
- https://doi.org/10.1063/5.0085674