High-temperature oxidation behavior of Cu64Zr36 metallic glass powders

Zhang, Mao; Ma, Yunfei; Huang, Ting; Gong, Pan; Wang, Ying; CAI, Hong-jun; Li, Qiaomin; WANG, Xin-yun; Deng, Lei

doi:10.1016/s1003-6326(23)66224-7

Cited by 4 publications

(1 citation statement)

References 43 publications

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“…However, at 450 and 600 °C, the wear rate trend of Fe–15Cu–0.8C materials tends toward a negative value (material gain) due to the elevated temperature. This is attributed to the formation of a dense sintered glazed layer on the worn surface during the friction and wear experiment, the obvious oxidation reaction of Cu and graphite in the samples at 400–500 °C, [ 28,29 ] as well as the development of oxides on the sample surface at high temperatures, leading to a negative increase in the material's wear rate. [ 9,10 ] The negative wear rate values indicate that the weight gain from oxide formation is the primary influencing factor.…”

Section: Resultsmentioning

confidence: 99%

Investigation of the Elevated Temperature Tribological Property and Wear Mechanism of Fe–15Cu–0.8C Materials Containing Mo‐Coated MoS₂Powders

Li,

Chen,

Shu

et al. 2024

Adv Eng Mater

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In this work, MoS2 solid lubricant was introduced in the form of Mo‐coated MoS2 powder, to enhance the antifriction properties of sintered ferrous antifriction materials (FAMs). The microstructure, phase composition, and tribological properties of Fe‐15Cu‐0.8C‐3.75 (Mo‐coated MoS2) (MC1) were investigated and compared with Fe‐15Cu‐0.8C (M0) samples, with a discussion on the wear mechanism at a wide temperature range of room temperature (RT) to 600 °C. The study revealed that the addition of Mo‐coated MoS2 powders effectively prevents the decomposition of MoS2 during sintering, enhances the bonding strength between MoS2 and the substrate, and significantly improves the hardness of the sintered Fe‐15Cu‐0.8C samples. In comparison to the sintered Fe‐15Cu‐0.8C samples, the sintered Fe‐15Cu‐0.8C‐3.75(Mo‐coated MoS2) samples exhibit good antifriction properties with a frictional coefficient of 0.23 at 600 °C and a wear rate of 6.3 × 10‐7 mm3/N·mm at 300 °C. Introducing Mo‐coated MoS2 significantly reduces the average friction coefficient and wear rate of the sintered FAMs at elevated temperatures, attributed to the formation of FeMoO4. The antifriction performance of MC1 samples notably decreases with increasing test temperatures. The main wear mechanism is oxidative wear above 300°C.This article is protected by copyright. All rights reserved.

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Section: Resultsmentioning

confidence: 99%

Investigation of the Elevated Temperature Tribological Property and Wear Mechanism of Fe–15Cu–0.8C Materials Containing Mo‐Coated MoS₂Powders

Li,

Chen,

Shu

et al. 2024

Adv Eng Mater

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Effect of aging temperature on microstructure and softening property of the Cu-Cr-Zr-Nb alloy

Miao,

Gan,

Jin

et al. 2024

Journal of Alloys and Compounds

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Defect analysis of the Cu-Cr-Zr-Nb alloys prepared by the non-vacuum melting process

Miao,

Gan,

Wang

et al. 2024

J. Phys.: Conf. Ser.

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The microstructure and properties of the Cu-Cr-Zr-Nb alloys prepared by non-vacuum melting and vacuum melting were compared and analyzed in this paper. The results showed that, compared with vacuum melting, the alloy prepared by non-vacuum melting had a more uneven microstructure and a coarser grain. In the meantime, the alloy prepared by non-vacuum melting stored less energy and had a lower proportion of HAGBs (high-angle grain boundaries), and the texture distribution along the TD and RD directions was not uniform. In terms of properties, the hardness and electrical conductivity of the Cu-Cr-Zr-Nb alloys prepared by non-vacuum melting were lower than those of the alloys prepared by vacuum melting. The electrical conductivity of the non-vacuum melting alloy was only 70.8 %IACS (International Annealed Copper Standard), and the average hardness fluctuated greatly. However, the electrical conductivity of the alloy prepared by vacuum melting could reach 81.0 %IACS, and the hardness was very uniform. Further research indicated that there were cracks and inclusions in the alloy prepared by non-vacuum melting. A large number of ZrO2 inclusions were found along the grain boundary, which demonstrated that the oxide inclusion was the primary cause of the crack formation. On this basis, three important suggestions for the preparation of the Cu-Cr-Zr-Nb alloys by non-vacuum melting were put forward to reduce the cost and improve the properties of the alloys. It provided guidance for developing high-performance Cu-Cr-Zr-Nb alloys by non-vacuum melting.

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High-temperature oxidation behavior of Cu64Zr36 metallic glass powders

Cited by 4 publications

References 43 publications

Investigation of the Elevated Temperature Tribological Property and Wear Mechanism of Fe–15Cu–0.8C Materials Containing Mo‐Coated MoS₂Powders

Investigation of the Elevated Temperature Tribological Property and Wear Mechanism of Fe–15Cu–0.8C Materials Containing Mo‐Coated MoS₂Powders

Effect of aging temperature on microstructure and softening property of the Cu-Cr-Zr-Nb alloy

Defect analysis of the Cu-Cr-Zr-Nb alloys prepared by the non-vacuum melting process

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High-temperature oxidation behavior of Cu64Zr36 metallic glass powders

Cited by 4 publications

References 43 publications

Investigation of the Elevated Temperature Tribological Property and Wear Mechanism of Fe–15Cu–0.8C Materials Containing Mo‐Coated MoS2Powders

Investigation of the Elevated Temperature Tribological Property and Wear Mechanism of Fe–15Cu–0.8C Materials Containing Mo‐Coated MoS2Powders

Effect of aging temperature on microstructure and softening property of the Cu-Cr-Zr-Nb alloy

Defect analysis of the Cu-Cr-Zr-Nb alloys prepared by the non-vacuum melting process

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Investigation of the Elevated Temperature Tribological Property and Wear Mechanism of Fe–15Cu–0.8C Materials Containing Mo‐Coated MoS₂Powders

Investigation of the Elevated Temperature Tribological Property and Wear Mechanism of Fe–15Cu–0.8C Materials Containing Mo‐Coated MoS₂Powders