Examining Cu content contribution to changes in oxide layer formed on selective-laser-melted CoCrW alloys

Yanjin Lu, Wenlie Lin, Meiming Xie, Wentao Xu, Yujing Liu, Junjie Lin, Chun Yu, Kanglai Tang, Wenyuan Liu, Ke Yang, Jinxin Lin

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this study, CoCrW alloys with different Cu contents (0, 2, 3, and 6 wt%) were prepared by selective laser melting for dental applications. The bonding strength between porcelain and the metal in porcelain-fused-to-metal dental restorations could be considerably affected by the quality of Cr oxide formed on CoCr-based alloys. Recent studies revealed that the Cu element could affect the oxidation behavior of austenitic steels. Therefore, it is essential to investigate the effect of the Cu element introduction on the oxidation performance of CoCrW alloys. The SEM and SPM indicated that the Cu element considerably affected the microstructures and the roughness of the oxide layer. XRD analysis showed that the oxide layer in CoCrW alloys was mainly composed of Cr2O3 and CoCr2O4, while trace amounts of CuO and Cu2O were found after the addition of the Cu element. The depth profiles obtained by XPS suggested that the Cu content in the film structure could affect the thickness of the Cr oxide regions, which revealed that the addition of the Cu element accelerated the oxidation of CoCrW alloys by promoting the diffusion of the O element into the inner layer. The three-point bending test indicated that the addition of Cu had a negative effect on the bonding strength between porcelain and the metal substrate.

Original languageEnglish
Pages (from-to)262-272
Number of pages11
JournalApplied Surface Science
Volume464
DOIs
Publication statusPublished - 15 Jan 2019

Cite this

Lu, Yanjin ; Lin, Wenlie ; Xie, Meiming ; Xu, Wentao ; Liu, Yujing ; Lin, Junjie ; Yu, Chun ; Tang, Kanglai ; Liu, Wenyuan ; Yang, Ke ; Lin, Jinxin. / Examining Cu content contribution to changes in oxide layer formed on selective-laser-melted CoCrW alloys. In: Applied Surface Science. 2019 ; Vol. 464. pp. 262-272.
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title = "Examining Cu content contribution to changes in oxide layer formed on selective-laser-melted CoCrW alloys",
abstract = "In this study, CoCrW alloys with different Cu contents (0, 2, 3, and 6 wt{\%}) were prepared by selective laser melting for dental applications. The bonding strength between porcelain and the metal in porcelain-fused-to-metal dental restorations could be considerably affected by the quality of Cr oxide formed on CoCr-based alloys. Recent studies revealed that the Cu element could affect the oxidation behavior of austenitic steels. Therefore, it is essential to investigate the effect of the Cu element introduction on the oxidation performance of CoCrW alloys. The SEM and SPM indicated that the Cu element considerably affected the microstructures and the roughness of the oxide layer. XRD analysis showed that the oxide layer in CoCrW alloys was mainly composed of Cr2O3 and CoCr2O4, while trace amounts of CuO and Cu2O were found after the addition of the Cu element. The depth profiles obtained by XPS suggested that the Cu content in the film structure could affect the thickness of the Cr oxide regions, which revealed that the addition of the Cu element accelerated the oxidation of CoCrW alloys by promoting the diffusion of the O element into the inner layer. The three-point bending test indicated that the addition of Cu had a negative effect on the bonding strength between porcelain and the metal substrate.",
keywords = "Selective laser melting, Antibacterial materials, High-temperature oxidation, CoCr alloys, HIGH-TEMPERATURE OXIDATION, AUSTENITIC STAINLESS-STEEL, HEAT-TREATMENT, MECHANICAL-PROPERTIES, BOND STRENGTH, CR ALLOYS, BEHAVIOR, MICROSTRUCTURE, 700-1000-DEGREES-C, 700-900-DEGREES-C",
author = "Yanjin Lu and Wenlie Lin and Meiming Xie and Wentao Xu and Yujing Liu and Junjie Lin and Chun Yu and Kanglai Tang and Wenyuan Liu and Ke Yang and Jinxin Lin",
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journal = "Applied Surface Science",
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Examining Cu content contribution to changes in oxide layer formed on selective-laser-melted CoCrW alloys. / Lu, Yanjin; Lin, Wenlie; Xie, Meiming; Xu, Wentao; Liu, Yujing; Lin, Junjie; Yu, Chun; Tang, Kanglai; Liu, Wenyuan; Yang, Ke; Lin, Jinxin.

In: Applied Surface Science, Vol. 464, 15.01.2019, p. 262-272.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Examining Cu content contribution to changes in oxide layer formed on selective-laser-melted CoCrW alloys

AU - Lu, Yanjin

AU - Lin, Wenlie

AU - Xie, Meiming

AU - Xu, Wentao

AU - Liu, Yujing

AU - Lin, Junjie

AU - Yu, Chun

AU - Tang, Kanglai

AU - Liu, Wenyuan

AU - Yang, Ke

AU - Lin, Jinxin

PY - 2019/1/15

Y1 - 2019/1/15

N2 - In this study, CoCrW alloys with different Cu contents (0, 2, 3, and 6 wt%) were prepared by selective laser melting for dental applications. The bonding strength between porcelain and the metal in porcelain-fused-to-metal dental restorations could be considerably affected by the quality of Cr oxide formed on CoCr-based alloys. Recent studies revealed that the Cu element could affect the oxidation behavior of austenitic steels. Therefore, it is essential to investigate the effect of the Cu element introduction on the oxidation performance of CoCrW alloys. The SEM and SPM indicated that the Cu element considerably affected the microstructures and the roughness of the oxide layer. XRD analysis showed that the oxide layer in CoCrW alloys was mainly composed of Cr2O3 and CoCr2O4, while trace amounts of CuO and Cu2O were found after the addition of the Cu element. The depth profiles obtained by XPS suggested that the Cu content in the film structure could affect the thickness of the Cr oxide regions, which revealed that the addition of the Cu element accelerated the oxidation of CoCrW alloys by promoting the diffusion of the O element into the inner layer. The three-point bending test indicated that the addition of Cu had a negative effect on the bonding strength between porcelain and the metal substrate.

AB - In this study, CoCrW alloys with different Cu contents (0, 2, 3, and 6 wt%) were prepared by selective laser melting for dental applications. The bonding strength between porcelain and the metal in porcelain-fused-to-metal dental restorations could be considerably affected by the quality of Cr oxide formed on CoCr-based alloys. Recent studies revealed that the Cu element could affect the oxidation behavior of austenitic steels. Therefore, it is essential to investigate the effect of the Cu element introduction on the oxidation performance of CoCrW alloys. The SEM and SPM indicated that the Cu element considerably affected the microstructures and the roughness of the oxide layer. XRD analysis showed that the oxide layer in CoCrW alloys was mainly composed of Cr2O3 and CoCr2O4, while trace amounts of CuO and Cu2O were found after the addition of the Cu element. The depth profiles obtained by XPS suggested that the Cu content in the film structure could affect the thickness of the Cr oxide regions, which revealed that the addition of the Cu element accelerated the oxidation of CoCrW alloys by promoting the diffusion of the O element into the inner layer. The three-point bending test indicated that the addition of Cu had a negative effect on the bonding strength between porcelain and the metal substrate.

KW - Selective laser melting

KW - Antibacterial materials

KW - High-temperature oxidation

KW - CoCr alloys

KW - HIGH-TEMPERATURE OXIDATION

KW - AUSTENITIC STAINLESS-STEEL

KW - HEAT-TREATMENT

KW - MECHANICAL-PROPERTIES

KW - BOND STRENGTH

KW - CR ALLOYS

KW - BEHAVIOR

KW - MICROSTRUCTURE

KW - 700-1000-DEGREES-C

KW - 700-900-DEGREES-C

U2 - 10.1016/j.apsusc.2018.09.082

DO - 10.1016/j.apsusc.2018.09.082

M3 - Article

VL - 464

SP - 262

EP - 272

JO - Applied Surface Science

JF - Applied Surface Science

SN - 0169-4332

ER -