Special Issue "Thermal Spraying of Metallic Coatings"

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: 30 September 2019

Special Issue Editor

Guest Editor
Prof. Dr. Cecilia Bartuli

Department of Chemical Engineering, Materials, Environment - University of Rome "La Sapienza", Via Eudossiana 18, 00185 Rome, RM, Italy
Website | E-Mail
Phone: +39‐06‐44585633
Interests: surface engineering; thermal spray deposition of protective and functional coatings; thermal barrier coatings; wear resistant cermet coatings; coatings for harsh environments; corrosion

Special Issue Information

Dear Colleagues,

This is an invitation to contribute to a Special Issue of the open-access MDPI journal Metals, which is dedicated to "Thermal Spraying of Metallic Coatings".

Thermal spray is a large family of surface deposition techniques that are experiencing constant progress and evolution. Improving our fundamental comprehension of the physico-chemical phenomena at the basis of coatings build-up allows for the implementation of new processes designed to meet special requirements for either sensitive and complex-shaped substrates or challenging coating materials (such as nano-crystalline materials, amorphous metals, or metastable phases).

The subject proposed for the Special Issue covers fundamental and technological topics concerning consolidated and advanced spraying techniques for the deposition of metals and metal matrix composites (such as cold spraying, warm spraying, and high-velocity air-fuel); the optimization of conventional compositions and systems; and the design of innovative, metal-based coatings and architectures for newly conceived applications.

Topics of interest will include (but will not be limited to) the following:

  • Recent developments in thermal spraying technologies for metal-based coatings
  • The metallurgy of coatings and coating–substrate combinations
  • Wear, corrosion, and oxidation-resistant coatings
  • Innovative bond coats for thermal barrier coatings
  • Coatings for electronics
  • Coatings for biomedical applications
  • Post-treatments and joining
  • Standardization of testing procedures
  • Modelling and simulation of deposition processes and of coating performance in operation

I look forward to receiving your contribution to this common project, and I hope that the collection of papers will be able to offer a comprehensive and original overview of the most advanced research and technology efforts of the thermal spray community in the field of metallic coatings.

Prof. Cecilia Bartuli
Guest Editor

Keywords

  • Cold spray
  • Plasma spray
  • HVOF
  • HVAF
  • Warm spray
  • Weld
  • Arc
  • Laser
  • Wear
  • Cavitation
  • Corrosion
  • Oxidation
  • Functional coatings
  • Post-treatment

Published Papers (1 paper)

View options order results:
result details:
Displaying articles 1-1
Export citation of selected articles as:

Research

Open AccessArticle Phase Stability and Microstructure Evolution of Solution-Hardened 316L Powder Feedstock for Thermal Spraying
Metals 2018, 8(12), 1063; https://doi.org/10.3390/met8121063
Received: 4 December 2018 / Revised: 12 December 2018 / Accepted: 13 December 2018 / Published: 14 December 2018
PDF Full-text (3317 KB) | HTML Full-text | XML Full-text
Abstract
A solution-hardening of AISI 316L stainless-steel powder was conducted. The expansion of the crystal lattice and a strong increase in the nanoindentation hardness confirm the successful diffusion of carbon and nitrogen in the interstices. A multiphase state of the powder feedstock with phase [...] Read more.
A solution-hardening of AISI 316L stainless-steel powder was conducted. The expansion of the crystal lattice and a strong increase in the nanoindentation hardness confirm the successful diffusion of carbon and nitrogen in the interstices. A multiphase state of the powder feedstock with phase fractions of the metastable S-phase (expanded austenite) mainly at the particle’s edge, and the initial austenitic phase within the core was found. Thermal spraying using high velocity oxy-fuel (HVOF) and atmospheric plasma spraying (APS) prove the sufficient thermal stability of the Sphase. Microstructural investigations of the HVOF coating reveal the ductility of the S-phase layer, while the higher heat load within the APS cause diffusion processes with the initial austenitic phase. The lattice expansion and the nanoindentation hardness decrease during thermal spraying. However, the absence of precipitates ensures the sufficient heat stability of the metastable S-phase. Even though further efforts are required for the thermochemical treatment of powder feedstock, the results confirm the feasibility of the novel powder treatment approach. Full article
(This article belongs to the Special Issue Thermal Spraying of Metallic Coatings)
Figures

Figure 1

Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top