2021
DOI: 10.12913/22998624/135979
|View full text |Cite
|
Sign up to set email alerts
|

Comparative Analysis of Mechanical Properties of WC-based Cermet Coatings Sprayed by HVOF onto AZ31 Magnesium Alloy Substrates

Abstract: Magnesium alloys are very interesting engineering materials due to their very high strength to density ratio (the best among metallic alloys). However, because of low hardness as well as low resistance against erosion, abrasion and corrosion, their applications in the industry is very limited. In order to improve mechanical performances, deposition of hardening coating by thermal spraying was proposed. In this work, the WC-based coatings with different binder (Co or Ni) and co-hardening additives (Cr or Cr 3 C… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

2
5
0
1

Year Published

2021
2021
2023
2023

Publication Types

Select...
7
1

Relationship

1
7

Authors

Journals

citations
Cited by 14 publications
(8 citation statements)
references
References 36 publications
2
5
0
1
Order By: Relevance
“…A WC-12Co coating on 316 stainless steel reported by Stack showed a hardness value of 616 Hv that was similar to this result [40]. However, with appropriate parameters and low porosity the hardness of this kind of coatings can reach approximately 1300 (approximately 16 GPa) [21,41,42]. The differences in hardness between the research works could be attributed to the decarburization, carbide grain size and density of the coating which are generated by various conditions in the HVOF process.…”
Section: Hardnesssupporting
confidence: 77%
“…A WC-12Co coating on 316 stainless steel reported by Stack showed a hardness value of 616 Hv that was similar to this result [40]. However, with appropriate parameters and low porosity the hardness of this kind of coatings can reach approximately 1300 (approximately 16 GPa) [21,41,42]. The differences in hardness between the research works could be attributed to the decarburization, carbide grain size and density of the coating which are generated by various conditions in the HVOF process.…”
Section: Hardnesssupporting
confidence: 77%
“…Circularity was divided in the ranges: (i) 0-0.25 (which stands for the most irregular pores), (ii) 0.26-0.50, (iii) 0.51-0.75 and (iv) 0.76-1.00 (where 1 means the perfect sphere shape). More details of porosity analysis methodology were presented in works [27,30,31].…”
Section: Porosity Analysismentioning
confidence: 99%
“…Also thermal spraying methods could be used in order to manufacture coatings on magnesium alloys, as follow: cold spray [29], arc spray [30,31], detonationgun [32], flame spray [33] and plasma spray [34,35]. As it was described in previous papers [36,37], high velocity oxy fuel (HVOF) method is the most promising, especially for cermet coatings deposition. Although coatings sprayed on AZ31 alloy substrates are already well described [38], there is a gap in the literature related to the application of coatings on AZ91 alloy substrates.…”
Section: Introductionmentioning
confidence: 99%