Characterization of vacuum plasma spray VPS - W coating deposited on stainless steel substrates
Karakterizacija vakuum plazma sprej VPS - W prevlake deponovane na čeličnim podloga
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In this paper, studied was the melting of W powder particles in plasma, their behavior at oxidation as well as the mechanism of hardening on the surface of the substrate. Tungsten coating layers were deposited with vacuum plasma spray technology (VPS) on the test specimens of steel Č.4171 (X15Cr13 EN10027). VPS technology has advantages over the APS technology due to decreased oxidation of melted powder particles, by producing a coating with a controlled proportion of micro pores and greater uniformity of the deposited layers. Evaluation of mechanical characteristics of the layers was done by examining the microhardness using the HV0.3 method and tensile bond strength by tensile testing. The microstructures of the deposited layers were analyzed by means of optical microscopy (OM) and scanning electron microscopy (SEM). The results obtained showed that the tungsten coating consisted of well melted particles that interconnected and were overlapping, which shows a typical lamellar microst...ructure. Present in the microstructure are micro pores in very small proportion at the inter-lamellar boundaries. Tests have shown that layers of W coating deposited by plasma spray in inert gas shielding at low pressure have good mechanical properties and microstructure, which in the fully enables its use in exploitation.
U ovom radu proučavano je topljenje čestica praha W u plazmi, njihovo ponašanje na oksidaciju
kao i mehanizam očvršćavanja na površini substrata. Slojevi volfram prevlake su deponovani sa
vakuum plazma sprej tehnologijom (VPS) na ispitnim uzorcima od čelika Č.4171 (X15Cr13
EN10027). VPS tehnologija ima prednosti u odnosu na APS tehnologiju zbog smanjene oksidacije
istopljenih čestica praha, proizvodeći prevlaku sa kontrolisanim udelom mikro pora i većom
uniformnosti deponovanih slojeva. Procena mehaničkih karakteristika slojeva je urađena
ispitivanjem mikrotvrdoće metodom HV0.3 i zatezne čvrstoće spoja ispitivanjem na zatezanje.
Analizirane su mikrostrukture deponovanih slojeva pomoću optičke mikroskopije (OM) i skening
elektronske mikroskopije (SEM). Dobijeni rezultati su pokazali da se volfram prevlaka sastojala od
dobro istopljenih čestica međusobno povezanih i preklopljenih, koja pokazuje tipičnu lamelarnu
mikrostrukturu. U mikrostrukturi su prisutne mikro pore u veoma ma...lom udelu koje se nalaze na
među-lamelarnim granicama. Ispitivanja su pokazala da slojevi W prevlake deponovani plazma
sprejom u zaštritnoj atmosferi inertnog gasa na niskom pritisku imaju dobre mehaničke osobine i
mikrostrukturu, koje u potpunosti omogućavaju njenu primenu u eksploataciji.
Кључне речи:
Bond strength / Interface / Microhardness / Microstructure / Tungsten / Vacuum plasma spray (VPS) / volfram / vakuum plazma sprej (VPS) / mikrostruktura / interfejs / mikrotvrdoća / čvrstoća spojaИзвор:
Zaštita materijala, 2021, 62, 2, 106-112Издавач:
- Inženjersko društvo za koroziju
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200287 (Иновациони центар Технолошко-металуршког факултета у Београду доо) (RS-MESTD-inst-2020-200287)
Колекције
Институција/група
Inovacioni centarTY - JOUR AU - Mrdak, Mihailo AU - Lačnjevac, Časlav AU - Rakin, Marko AU - Janaćković, Đorđe AU - Veljić, Darko PY - 2021 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5118 AB - In this paper, studied was the melting of W powder particles in plasma, their behavior at oxidation as well as the mechanism of hardening on the surface of the substrate. Tungsten coating layers were deposited with vacuum plasma spray technology (VPS) on the test specimens of steel Č.4171 (X15Cr13 EN10027). VPS technology has advantages over the APS technology due to decreased oxidation of melted powder particles, by producing a coating with a controlled proportion of micro pores and greater uniformity of the deposited layers. Evaluation of mechanical characteristics of the layers was done by examining the microhardness using the HV0.3 method and tensile bond strength by tensile testing. The microstructures of the deposited layers were analyzed by means of optical microscopy (OM) and scanning electron microscopy (SEM). The results obtained showed that the tungsten coating consisted of well melted particles that interconnected and were overlapping, which shows a typical lamellar microstructure. Present in the microstructure are micro pores in very small proportion at the inter-lamellar boundaries. Tests have shown that layers of W coating deposited by plasma spray in inert gas shielding at low pressure have good mechanical properties and microstructure, which in the fully enables its use in exploitation. AB - U ovom radu proučavano je topljenje čestica praha W u plazmi, njihovo ponašanje na oksidaciju kao i mehanizam očvršćavanja na površini substrata. Slojevi volfram prevlake su deponovani sa vakuum plazma sprej tehnologijom (VPS) na ispitnim uzorcima od čelika Č.4171 (X15Cr13 EN10027). VPS tehnologija ima prednosti u odnosu na APS tehnologiju zbog smanjene oksidacije istopljenih čestica praha, proizvodeći prevlaku sa kontrolisanim udelom mikro pora i većom uniformnosti deponovanih slojeva. Procena mehaničkih karakteristika slojeva je urađena ispitivanjem mikrotvrdoće metodom HV0.3 i zatezne čvrstoće spoja ispitivanjem na zatezanje. Analizirane su mikrostrukture deponovanih slojeva pomoću optičke mikroskopije (OM) i skening elektronske mikroskopije (SEM). Dobijeni rezultati su pokazali da se volfram prevlaka sastojala od dobro istopljenih čestica međusobno povezanih i preklopljenih, koja pokazuje tipičnu lamelarnu mikrostrukturu. U mikrostrukturi su prisutne mikro pore u veoma malom udelu koje se nalaze na među-lamelarnim granicama. Ispitivanja su pokazala da slojevi W prevlake deponovani plazma sprejom u zaštritnoj atmosferi inertnog gasa na niskom pritisku imaju dobre mehaničke osobine i mikrostrukturu, koje u potpunosti omogućavaju njenu primenu u eksploataciji. PB - Inženjersko društvo za koroziju T2 - Zaštita materijala T1 - Characterization of vacuum plasma spray VPS - W coating deposited on stainless steel substrates T1 - Karakterizacija vakuum plazma sprej VPS - W prevlake deponovane na čeličnim podloga EP - 112 IS - 2 SP - 106 VL - 62 DO - 10.5937/zasmat2102106M ER -
@article{ author = "Mrdak, Mihailo and Lačnjevac, Časlav and Rakin, Marko and Janaćković, Đorđe and Veljić, Darko", year = "2021", abstract = "In this paper, studied was the melting of W powder particles in plasma, their behavior at oxidation as well as the mechanism of hardening on the surface of the substrate. Tungsten coating layers were deposited with vacuum plasma spray technology (VPS) on the test specimens of steel Č.4171 (X15Cr13 EN10027). VPS technology has advantages over the APS technology due to decreased oxidation of melted powder particles, by producing a coating with a controlled proportion of micro pores and greater uniformity of the deposited layers. Evaluation of mechanical characteristics of the layers was done by examining the microhardness using the HV0.3 method and tensile bond strength by tensile testing. The microstructures of the deposited layers were analyzed by means of optical microscopy (OM) and scanning electron microscopy (SEM). The results obtained showed that the tungsten coating consisted of well melted particles that interconnected and were overlapping, which shows a typical lamellar microstructure. Present in the microstructure are micro pores in very small proportion at the inter-lamellar boundaries. Tests have shown that layers of W coating deposited by plasma spray in inert gas shielding at low pressure have good mechanical properties and microstructure, which in the fully enables its use in exploitation., U ovom radu proučavano je topljenje čestica praha W u plazmi, njihovo ponašanje na oksidaciju kao i mehanizam očvršćavanja na površini substrata. Slojevi volfram prevlake su deponovani sa vakuum plazma sprej tehnologijom (VPS) na ispitnim uzorcima od čelika Č.4171 (X15Cr13 EN10027). VPS tehnologija ima prednosti u odnosu na APS tehnologiju zbog smanjene oksidacije istopljenih čestica praha, proizvodeći prevlaku sa kontrolisanim udelom mikro pora i većom uniformnosti deponovanih slojeva. Procena mehaničkih karakteristika slojeva je urađena ispitivanjem mikrotvrdoće metodom HV0.3 i zatezne čvrstoće spoja ispitivanjem na zatezanje. Analizirane su mikrostrukture deponovanih slojeva pomoću optičke mikroskopije (OM) i skening elektronske mikroskopije (SEM). Dobijeni rezultati su pokazali da se volfram prevlaka sastojala od dobro istopljenih čestica međusobno povezanih i preklopljenih, koja pokazuje tipičnu lamelarnu mikrostrukturu. U mikrostrukturi su prisutne mikro pore u veoma malom udelu koje se nalaze na među-lamelarnim granicama. Ispitivanja su pokazala da slojevi W prevlake deponovani plazma sprejom u zaštritnoj atmosferi inertnog gasa na niskom pritisku imaju dobre mehaničke osobine i mikrostrukturu, koje u potpunosti omogućavaju njenu primenu u eksploataciji.", publisher = "Inženjersko društvo za koroziju", journal = "Zaštita materijala", title = "Characterization of vacuum plasma spray VPS - W coating deposited on stainless steel substrates, Karakterizacija vakuum plazma sprej VPS - W prevlake deponovane na čeličnim podloga", pages = "112-106", number = "2", volume = "62", doi = "10.5937/zasmat2102106M" }
Mrdak, M., Lačnjevac, Č., Rakin, M., Janaćković, Đ.,& Veljić, D.. (2021). Characterization of vacuum plasma spray VPS - W coating deposited on stainless steel substrates. in Zaštita materijala Inženjersko društvo za koroziju., 62(2), 106-112. https://doi.org/10.5937/zasmat2102106M
Mrdak M, Lačnjevac Č, Rakin M, Janaćković Đ, Veljić D. Characterization of vacuum plasma spray VPS - W coating deposited on stainless steel substrates. in Zaštita materijala. 2021;62(2):106-112. doi:10.5937/zasmat2102106M .
Mrdak, Mihailo, Lačnjevac, Časlav, Rakin, Marko, Janaćković, Đorđe, Veljić, Darko, "Characterization of vacuum plasma spray VPS - W coating deposited on stainless steel substrates" in Zaštita materijala, 62, no. 2 (2021):106-112, https://doi.org/10.5937/zasmat2102106M . .