Influence of the sandblasting on the subsurface microstructure of 316LVM stainless steel: Implications on the magnetic and mechanical properties

Multigner, M.; Frutos, E.; González-Carrasco, José Luis; Jiménez, José Antonio; Marı́n, P.; Ibáñez, Joaquı́n

doi:10.1016/j.msec.2008.11.002

Cited by 70 publications

(42 citation statements)

References 13 publications

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“…Stainless steel is an important material because sandblasting produces (together with thermal treatment) a nanocrystalline layer improving surface properties [9]. Moreover, metastable austenitic stainless steels exhibiting fcc structure can be transformed to martensitic (bcc) phase by plastic deformation [10,11]. In this way, the studies of stainless steel 304 AISI seem to be justified from practical point of view even if results presented in this paper have a basic character.…”

Section: Introductionmentioning

confidence: 88%

Positron Annihilation and Complementary Studies of Stainless Steel Exposed to Sandblasting at Different Angles

et al. 2017

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Defect studies in subsurface zone in stainless steel 304 AISI samples exposed to sandblasting were performed using positron annihilation spectroscopy techniques. Samples were sandblasted with a different impact angle. Conventional experiments based on positrons emitted directly from the radioactive source allowed us to detect vacancies on the dislocation edges in all samples; however, the total depths of subsurface zones depended strictly on the impact angle, i.e., 35 lm for impact angle of 90°and about 12 lm for 30°. The complementary methods such as SEM and optical profilometry revealed also dependencies between the impact angle and roughness of the surface which are not observed in the variable energy positron beam examinations.

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Section: Introductionmentioning

confidence: 88%

Positron Annihilation and Complementary Studies of Stainless Steel Exposed to Sandblasting at Different Angles

et al. 2017

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“…The accuracy of the method will be enhanced first by determining the variation in the indent angle after the removal of the load using different approaches. Second, by discarding the contribution of microstructure-related features, particularly grain size refinement and work hardening [17,18], and simultaneously increasing the maximum load. The results of residual stress obtained with the upgraded model are compared with the experimental results obtained by synchrotron radiation in the same specimens [13].…”

Section: Introductionmentioning

confidence: 99%

Novel approaches to determining residual stresses by ultramicroindentation techniques: Application to sandblasted austenitic stainless steel

2010

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This research addresses the determination of residual stresses in sandblasted austenitic steel by ultramicroindentation techniques using a sharp indenter, of which the sensitivity to residual stress effects is said to be inferior to that of spherical ones. The introduction of an angular correction in the model of Wang et al. which relates variations in the maximum load to the presence of residual stresses is proposed. Similarly, the contribution to the hardness of grain size refinement and work hardening, developed as a consequence of the severe plastic deformation during blasting, is determined in order to avoid overestimation of the residual stresses. Measurements were performed on polished cross sections along a length of several microns, thus obtaining a profile of the residual stresses. Results show good agreement with those obtained by synchrotron radiation on the same specimens, which validates the method and demonstrates that microindentation using sharp indenters may be sensitive to the residual stress effect.

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“…An interesting microstructural feature following sandblasting is that hardness was highest in the severely deformed near surface layer of cp Ti (Gil et al, 2007) and austenitic stainless steel 316L (Multigner et al, 2009b, but not in the Ti 6Al 4V alloy (Multigner et al, 2009a(Multigner et al, , 2009c. This study shows that the very small hardening at the outermost blasted affected zone of the Ti 6Al 4V alloy could be easily related to the low capability for strain hardening (n ¼0.073).…”

Section: 2mentioning

confidence: 99%

“…Depending of the substrate, grain size refinement and formation of new phases may occur (Multigner et al, 2009b. The net effect is a subsurface hardening with the highest hardness values beneath the blasted surface.…”

Section: Introductionmentioning

confidence: 99%

Fatigue behavior of Ti6Al4V and 316 LVM blasted with ceramic particles of interest for medical devices

Barriuso

Chao

Jiménez

et al. 2014

Journal of the Mechanical Behavior of Biomedical Materials

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Influence of the sandblasting on the subsurface microstructure of 316LVM stainless steel: Implications on the magnetic and mechanical properties

Cited by 70 publications

References 13 publications

Positron Annihilation and Complementary Studies of Stainless Steel Exposed to Sandblasting at Different Angles

Positron Annihilation and Complementary Studies of Stainless Steel Exposed to Sandblasting at Different Angles

Novel approaches to determining residual stresses by ultramicroindentation techniques: Application to sandblasted austenitic stainless steel

Fatigue behavior of Ti6Al4V and 316 LVM blasted with ceramic particles of interest for medical devices

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