The effect of aging heat treatment on the sliding wear behaviour of Cu–Al–Fe alloys

Yaşar, Mustafa; Altunpak, Yahya

doi:10.1016/j.matdes.2008.05.041

Cited by 38 publications

(16 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A high porosity of the coatings did not improve the wear resistance, possibly because during the ball-on-disk test, the pores can act as a stress concentrator, generating cracks and further degradation. Similar results were reported by Yasar [45]. The results of wear rates vs. porosity obtained in the ball-on-disc test are shown in Figure 7.…”

Section: Resultssupporting

confidence: 88%

“…This could be due to the fact that coatings deposited with higher pressures, which exhibited the highest enthalpy rates and high particle velocity, have a less porous morphology. Higher particle velocities result in higher impact energy, which leads to a greater degree of deformation of these particles, producing higher coating densities [44,45]. A high porosity of the coatings did not improve the wear resistance, possibly because during the ball-on-disk test, the pores can act as a stress concentrator, generating cracks and further degradation.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Influence of Gas Pressure on the Mechanical and Tribological Properties of Cu-Al Coatings Deposited via Thermal Spray

2019

View full text Add to dashboard Cite

We report the results of the influence of the acetylene and oxygen gas pressure on the wear resistance of aluminum–bronze coatings deposited on naval brass substrate by means of the thermal (flame) deposition process. The coatings were characterized by means of scanning electronic microscopy (SEM), energy-dispersive X-ray spectrometry (EDS), X-ray diffraction (XRD), and X-ray fluorescence (XRF). The adhesion was determined with cross-hatching tests, and the mechanical response was assessed by measuring the nanohardness and by three-body and ball-on-disk abrasive wear tests. The results indicate that changes in the pressure and flow of the gas affect the morphology and the mechanical properties of the coatings, and these effects have consequences for the wear behavior of the coatings. Before the projection of the coatings, numerical simulations were carried out using Jets & Poudres software, where the collision speed of the particles was identified as the most significant factor that influences the mechanical properties and the performance of the coating. The gas pressure modified the hardness and the porosity level, which allowed improving the wear resistance.

show abstract

Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Influence of Gas Pressure on the Mechanical and Tribological Properties of Cu-Al Coatings Deposited via Thermal Spray

2019

View full text Add to dashboard Cite

show abstract

“…Cu-Al alloys have excellent properties, including thermal conductivity, wear resistance, and corrosion resistance, and has been applied widely in bearings, bushings, and gears [1][2][3][4][5][6]. Al has a greater influence on the lattice constant of Cu than other alloy elements due to its high solid solubility in Cu [7], and its addition significantly improves the strength and hardness of the alloy [8].…”

Section: Introductionmentioning

confidence: 99%

Effect of Mn on microstructure and properties of Cu-12Al powder metallurgy alloy

Zhang

Yin

Zhang

et al. 2020

Mater. Res. Express

View full text Add to dashboard Cite

Cu-12Al-xMn (x=0, 1, 2, 3, 4%, mass fraction) alloys were produced using powder metallurgy to investigate the effect of Mn content on the alloy's microstructure and mechanical properties. The Cu-12Al (no Mn) and Cu-12Al-1Mn (1 wt% Mn) alloys consisted of the α+γ phases, where the size of the α grains in the Cu-12Al-1Mn alloy are much larger. Mn effectively inhibited the eutectoid transformation at a concentration above 1 wt%. Furthermore, the β phase was converted to the β′martensite phase, which had a monoclinic structure after slow cooling. The phases of the alloy changed from the α+γ phases to the α+β′+γ phases with the further addition of Mn, and the tensile strength of the 3 wt% Mn alloy was 380.59 MPa. The addition of Mn did not have a significant effect on the density of the alloy.

show abstract

“…알루미늄 청동에 Fe를 첨가하면 결정 미세화에 의한 인장 강도와 연신율이 증가하며, Si을 첨가하면 결정의 미세화와 γ 2 생성을 억제하여 내식성이 향상된다고 알려져 있다 [6][7][8]. 본 연구는 Cu-Al 합금의 공석변태에 기인하는 문제점을 극 복하고, 알루미늄 청동의 고강도 고연신율 방안을 연구하기 위하여 Cu-Al 합금상태도에서 α 상이 안정적으로 생성되는 Cu-Al 모합금에 Fe와 Si을 각각 단독 또는 복합 첨가된 금 형주조 봉상 시험편과 원심주조 원통형 부시 시험편을 제조 하고, 알루미늄 청동의 미세조직과 기계적 성질에 미치는 Fe 및 Si 첨가 영향을 고찰하였다.…”

Section: 서 론unclassified

Effects of Iron and Silicon Additions on the Microstructures and Mechanical Properties of Aluminium Bronze

Kim¹,

Kim²,

Kim³

et al. 2016

Journal of Korea Foundry Society

View full text Add to dashboard Cite

The effects of Fe and Si additions on the microstructures and mechanical properties of aluminum bronze have been investigated. In a bar-type specimen cast in a die mold, the addition of Fe promoted the dendritic solidification of the α phase. The hardness values increased slightly in the Fe-added specimen with heat treatment, while these values was increased significantly in the specimens with Si or with combined additions of Fe and Si. When a centrifugal casting bush with combined addition of Fe and Si was heat treated, the FeSi compound within the matrix was finely dispersed, and was observed to be the origin of cup-cone type conical dimple failure in the tensile fracture surface. The mechanical properties of the heat treated centrifugal casting bushes, whose nominal alloy compositions were (Cu-7.0Al-0.8Fe-3.0Si)wt%, exhibited tensile strength of 703-781 N/mm 2 , elongation of 6.6-11.7% and hardness of Hv 222.6-249.2. These high values of strength and elongation were attributed to the strengthening of the matrix due to the combined addition of Fe and Si, and to precipitation of fine the FeSi compound.

show abstract

The effect of aging heat treatment on the sliding wear behaviour of Cu–Al–Fe alloys

Cited by 38 publications

References 9 publications

Influence of Gas Pressure on the Mechanical and Tribological Properties of Cu-Al Coatings Deposited via Thermal Spray

Influence of Gas Pressure on the Mechanical and Tribological Properties of Cu-Al Coatings Deposited via Thermal Spray

Effect of Mn on microstructure and properties of Cu-12Al powder metallurgy alloy

Effects of Iron and Silicon Additions on the Microstructures and Mechanical Properties of Aluminium Bronze

Contact Info

Product

Resources

About