NiTi coating formation on Ti for enhanced wear resistance utilizing electron-beam additive manufacturing technique

Wang, Lei; Okugawa, Masayuki; Liu, Yuheng; Cho, Ken; Yasuda, Hiroyuki Y.; Nakano, Takayoshi; Koizumi, Yuichiro

doi:https://doi.org/10.1016/j.surfin.2025.107024

NiTi coating formation on Ti for enhanced wear resistance utilizing electron-beam additive manufacturing technique

Wang, Lei; Okugawa, Masayuki; Liu, Yuheng et al.

Surfaces and Interfaces, 2025, 72, 107024

アクセス数:2件（2025-08-30 11:34 集計）

固定URL: https://hdl.handle.net/11094/102624

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タイトル	NiTi coating formation on Ti for enhanced wear resistance utilizing electron-beam additive manufacturing technique
著者	著者名 Wang, Lei
	NRID 1000070847160 1000070847160 ORCID 0000-0002-6844-6856 0000-0002-6844-6856 researchmap permalink masayuki.okugawa masayuki.okugawa Scopus Author ID 57202824128 57202824128 著者名 Okugawa, Masayuki
	NRID 1000000966088 1000000966088 ORCID 0000-0003-1790-1844 0000-0003-1790-1844 researchmap permalink liu-TU liu-TU Scopus Author ID 56195082800 56195082800 著者名 Liu, Yuheng
	NRID 1000000633661 1000000633661 ORCID 0009-0008-4612-6393 0009-0008-4612-6393 researchmap permalink choken choken Scopus Author ID 55535308400 55535308400 著者名 Cho, Ken
	NRID 1000060294021 1000060294021 ORCID 0000-0002-7077-0655 0000-0002-7077-0655 researchmap permalink read0051691 read0051691 Scopus Author ID 47861549600 47861549600 著者名 Yasuda, Hiroyuki Y.
	NRID 1000030243182 1000030243182 ORCID 0000-0001-8052-1698 0000-0001-8052-1698 researchmap permalink read0013987 read0013987 Scopus Author ID 7403896013 7403896013 著者名 Nakano, Takayoshi
	NRID 1000010322174 1000010322174 ORCID 0000-0001-7061-7135 0000-0001-7061-7135 researchmap permalink YuichiroKoizumi YuichiroKoizumi Scopus Author ID 57202772340 57202772340 著者名 Koizumi, Yuichiro
キーワード等	Commercially pure Ti
	Mechanial properties
	NiTi: Coating
	Shape-memory alloy
	Superelasticity
	Wear resistance
内容	Wang L., Okugawa M., Liu Y., et al. NiTi coating formation on Ti for enhanced wear resistance utilizing electron-beam additive manufacturing technique. Surfaces and Interfaces 72, 107024 (2025); https://doi.org/10.1016/j.surfin.2025.107024.
抄録	Titanium and its alloys are extensively utilized in various industries owing to their high corrosion resistance and excellent strength-to-weight ratio. However, their poor wear resistance limits further applications. The present study developed a novel method to fabricate wear-resistant NiTi coatings on commercially pure titanium (CP-Ti) substrates to overcome this limitation. The process comprises electroplating a pure Ni layer followed by fusion with the CP-Ti substrate by electron beam (EB) scanning. The surface roughness and composition of the coating can be fine-tuned by adjusting the EB irradiation conditions. For example, the average roughness of continuously scanned (CS) coatings is Ra 8.9, while the average roughness of intermittently scanned (IS) coatings is reduced by 60 % compared to CS-coatings. Additionally, the Ni concentration in the IS-coatings can be finely adjusted from 45 at.% to 55 at.% by adjusting EB power. X-ray diffractometry (XRD) revealed that IS-coatings are partially composed of superelastic B2-NiTi phases. Nanoindentation and sliding wear tests demonstrated that the hardness-to-modulus (H/E) ratio and depth recovery ratio (ηd,h) of the IS-coating increased by a factor of 4.7 and 2.9 compared to those of CP-Ti, respectively. Additionally, the specific wear rate (Ws) of the IS-coating was reduced by 80 % compared to CP-Ti. The mechanical properties of the IS-coating were comparable to those of superelastic NiTi alloy. This newly developed method offers potential applications beyond NiTi coatings, enabling the development of various functional coatings for enhanced wear resistance.
出版者	Elsevier B.V.
収録物名	Surfaces and Interfaces
巻(号)	72
ページ	107024
刊行年月	2025-06-27
言語	英語
ハンドルURL	https://hdl.handle.net/11094/102624
PISSN	24680230
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1016/j.surfin.2025.107024
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Surfaces and Interfaces. 2025, 72, p. 107024
DC.title	NiTi coating formation on Ti for enhanced wear resistance utilizing electron-beam additive manufacturing technique
DC.creator	Wang, Lei
	Okugawa, Masayuki
	Liu, Yuheng
	Cho, Ken
	Yasuda, Hiroyuki Y.
	Nakano, Takayoshi
	Koizumi, Yuichiro
DC.publisher	Elsevier B.V.
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2025-06-27
DC.identifier	https://doi.org/10.1016/j.surfin.2025.107024
DC.subject	Commercially pure Ti
	Mechanial properties
	NiTi: Coating
	Shape-memory alloy
	Superelasticity
	Wear resistance
DC.description	Wang L., Okugawa M., Liu Y., et al. NiTi coating formation on Ti for enhanced wear resistance utilizing electron-beam additive manufacturing technique. Surfaces and Interfaces 72, 107024 (2025); https://doi.org/10.1016/j.surfin.2025.107024.
DCTERMS.abstract	Titanium and its alloys are extensively utilized in various industries owing to their high corrosion resistance and excellent strength-to-weight ratio. However, their poor wear resistance limits further applications. The present study developed a novel method to fabricate wear-resistant NiTi coatings on commercially pure titanium (CP-Ti) substrates to overcome this limitation. The process comprises electroplating a pure Ni layer followed by fusion with the CP-Ti substrate by electron beam (EB) scanning. The surface roughness and composition of the coating can be fine-tuned by adjusting the EB irradiation conditions. For example, the average roughness of continuously scanned (CS) coatings is Ra 8.9, while the average roughness of intermittently scanned (IS) coatings is reduced by 60 % compared to CS-coatings. Additionally, the Ni concentration in the IS-coatings can be finely adjusted from 45 at.% to 55 at.% by adjusting EB power. X-ray diffractometry (XRD) revealed that IS-coatings are partially composed of superelastic B2-NiTi phases. Nanoindentation and sliding wear tests demonstrated that the hardness-to-modulus (H/E) ratio and depth recovery ratio (ηd,h) of the IS-coating increased by a factor of 4.7 and 2.9 compared to those of CP-Ti, respectively. Additionally, the specific wear rate (Ws) of the IS-coating was reduced by 80 % compared to CP-Ti. The mechanical properties of the IS-coating were comparable to those of superelastic NiTi alloy. This newly developed method offers potential applications beyond NiTi coatings, enabling the development of various functional coatings for enhanced wear resistance.
DC.rights	This article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
DC.format	102624
citation_title	NiTi coating formation on Ti for enhanced wear resistance utilizing electron-beam additive manufacturing technique
citation_author	Wang, Lei
	Okugawa, Masayuki
	Liu, Yuheng
	Cho, Ken
	Yasuda, Hiroyuki Y.
	Nakano, Takayoshi
	Koizumi, Yuichiro
citation_publisher	Elsevier B.V.
citation_language	英語
citation_date	2025-06-27
citation_journal_title	Surfaces and Interfaces
citation_volume	72
citation_firstpage	107024
citation_doi	https://doi.org/10.1016/j.surfin.2025.107024
citation_public_url	https://hdl.handle.net/11094/102624

NiTi coating formation on Ti for enhanced wear resistance utilizing electron-beam additive manufacturing technique

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