Hot dip galvanizing is one of the most popular processes used to protect steel against corrosion. It produces a coating characterized by intermetallic phases with different hardness and resistance. In this work has been studied a coating provided by a zinc alloy with 0.2 wt% of titanium. Steel samples were coated for a dipping time of 3 minutes at temperatures between 560-640 °C. The high temperatures were chosen as it has been observed a color change on the surface. With this type of bath composition the coatings obtained were characterized by a considerable thickness. By means of EDX (Energy Dispersive X-ray spectroscopy) and XRD (X-ray diffraction) intermediate phases containing FeTiZn formed during the process have been identified. Indentation and impact tests were carried out to show that the ZnTi coating is better than the more used pure zinc hot dip galvanized in terms of hardness and it undergoes decay if subjected to dynamic stresses. © 2015 The Authors. Published by Elsevier Ltd.

Mechanical and Structural Characterization of Zn-Ti Colored Coatings / Natali, Stefano; Volpe, Valerio; Zortea, Laura; Burattini, Chiara; Vittorio Di, Cocco; Francesco, Iacoviello. - In: PROCEDIA ENGINEERING. - ISSN 1877-7058. - ELETTRONICO. - 109:(2015), pp. 105-112. (Intervento presentato al convegno 23rd Italian Group of Fracture National Conference, IGF 2014 tenutosi a Trapani; Italy) [10.1016/j.proeng.2015.06.217].

Mechanical and Structural Characterization of Zn-Ti Colored Coatings

NATALI, Stefano;VOLPE, VALERIO;ZORTEA, LAURA;BURATTINI, CHIARA;
2015

Abstract

Hot dip galvanizing is one of the most popular processes used to protect steel against corrosion. It produces a coating characterized by intermetallic phases with different hardness and resistance. In this work has been studied a coating provided by a zinc alloy with 0.2 wt% of titanium. Steel samples were coated for a dipping time of 3 minutes at temperatures between 560-640 °C. The high temperatures were chosen as it has been observed a color change on the surface. With this type of bath composition the coatings obtained were characterized by a considerable thickness. By means of EDX (Energy Dispersive X-ray spectroscopy) and XRD (X-ray diffraction) intermediate phases containing FeTiZn formed during the process have been identified. Indentation and impact tests were carried out to show that the ZnTi coating is better than the more used pure zinc hot dip galvanized in terms of hardness and it undergoes decay if subjected to dynamic stresses. © 2015 The Authors. Published by Elsevier Ltd.
2015
23rd Italian Group of Fracture National Conference, IGF 2014
hot dip galvanizing; impact test; titanium phases
04 Pubblicazione in atti di convegno::04c Atto di convegno in rivista
Mechanical and Structural Characterization of Zn-Ti Colored Coatings / Natali, Stefano; Volpe, Valerio; Zortea, Laura; Burattini, Chiara; Vittorio Di, Cocco; Francesco, Iacoviello. - In: PROCEDIA ENGINEERING. - ISSN 1877-7058. - ELETTRONICO. - 109:(2015), pp. 105-112. (Intervento presentato al convegno 23rd Italian Group of Fracture National Conference, IGF 2014 tenutosi a Trapani; Italy) [10.1016/j.proeng.2015.06.217].
File allegati a questo prodotto
File Dimensione Formato  
Natali_Mechanical_2015.pdf

solo utenti autorizzati

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 627.56 kB
Formato Adobe PDF
627.56 kB Adobe PDF   Contatta l'autore

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/964202
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 9
  • ???jsp.display-item.citation.isi??? 8
social impact