Composition-Nanostructure Steered Performance Predictions in Steel Wires.
alloying
corrosion
gamma energy
martensite
neutron
steel
structure
surface
wire
work hardening
Journal
Nanomaterials (Basel, Switzerland)
ISSN: 2079-4991
Titre abrégé: Nanomaterials (Basel)
Pays: Switzerland
ID NLM: 101610216
Informations de publication
Date de publication:
03 Aug 2019
03 Aug 2019
Historique:
received:
17
07
2019
revised:
30
07
2019
accepted:
30
07
2019
entrez:
7
8
2019
pubmed:
7
8
2019
medline:
7
8
2019
Statut:
epublish
Résumé
Neutron scattering in combination with scanning electron and atomic force microscopy were employed to quantitatively resolve elemental composition, nano- through meso- to metallurgical structures and surface characteristics of two commercial stainless steel orthodontic archwires-G&H and Azdent. The obtained bulk composition confirmed that both samples are made of metastable austenitic stainless steel type AISI 304. The neutron technique's higher detection sensitivity to alloying elements facilitated the quantitative determination of the composition factor (CF), and the pitting resistance equivalent number (PREN) for predicting austenite stability and pitting-corrosion resistance, respectively. Simultaneous neutron diffraction analyses revealed that both samples contained additional martensite phase due to strain-induced martensite transformation. The unexpectedly high martensite content (46.20 vol%) in G&H was caused by combination of lower austenite stability (CF = 17.37,
Identifiants
pubmed: 31382607
pii: nano9081119
doi: 10.3390/nano9081119
pmc: PMC6723625
pii:
doi:
Types de publication
Journal Article
Langues
eng
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