Growth behavior of Cu/Al intermetallic compounds in hot‐dip aluminized copper

Yu, Zhenwei; Duan, Yuhua; Liu, Lidong; Liu, Shunhua; Liu, Xujing; Li, Yong

doi:10.1002/sia.3020

Cited by 17 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The coatings were deposited on C18200 disks using a thermo-chemical diffusion process. The aluminizing process and the properties of the coatings have been discussed in [20][21][22]. Chromium carbide is mostly used in applications with high operating temperatures and/or at highly erosive conditions.…”

Section: Materials and Samplesmentioning

confidence: 99%

Effect of surface polishing on the tribological performance of hard coatings under lubricated three-body abrasive conditions

Gheisari¹,

Bashandeh²,

Polycarpou³

2019

Surf. Topogr.: Metrol. Prop.

View full text Add to dashboard Cite

The present study investigates the effect of surface polishing on the tribological performance of two notably different coatings, namely chromium carbide and aluminized, under three-body abrasive conditions. Surface polishing altered the topographical and mechanical properties of the coatings. Detailed analysis of the most relevant roughness parameters highlighted the significance of surface topography under the tested conditions. Polished and unpolished coatings were tested on a pin-ondisk configuration under lubricated three-body abrasive conditions. Silica sand particles were added to the hydraulic oil to model contaminated lubricant conditions. In-situ friction coefficient and wear rate were obtained experimentally. The importance of surface roughness and core void volume in alleviating the abrasive wear was shown. It was found that the dominant wear mechanisms are independent of the coating roughness, however surface polishing increases wear, and does not significantly affect friction.

show abstract

Section: Materials and Samplesmentioning

confidence: 99%

Effect of surface polishing on the tribological performance of hard coatings under lubricated three-body abrasive conditions

Gheisari¹,

Bashandeh²,

Polycarpou³

2019

Surf. Topogr.: Metrol. Prop.

View full text Add to dashboard Cite

show abstract

“…Numerous techniques have been used by the researchers for joining similar and dissimilar metals. These techniques are mainly classified into three categories: (A) solid-solid bonding, like explosive welding [5], laser welding [6], friction stir welding [7], hydrostatic extrusion [4], brazing [8], and rolling [9]; (B) solid-liquid bonding, for instance, overcasting [10,11] and hot dipping [12]; (C) liquid-liquid bonding, such as direct chill casting [13], lost-foam casting [14], and continuous casting [15]. It is worth mentioning that solid-solid bonding is time consuming and costly due to the shape and design constraints of the substrate.…”

Section: Introductionmentioning

confidence: 99%

Mechanical characterization of aged AA2026-AA2026 overcast joints fabricated by squeeze casting

Ali

Ishfaq

Raza

et al. 2020

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Squeeze overcasting has emerged as an attractive option for casting of Al alloys in terms of mechanical properties. The attainment of the desired magnitude of these properties is challenging in overcasting due to the involvement of a number of process parameters. In this study, the effects of insert preheat temperature (T I) along with pouring temperature (T P), and squeeze pressure (P S) on the mechanical properties of squeeze overcast AA2026-AA2026 joint were investigated. Experimental results revealed that the squeeze pressure is the most prominent factor affecting the ultimate tensile strength (UTS) while micro-hardness (MH) is significantly influenced by the pouring temperature. Maximum values of UTS (315 MPa) and MH (130 HV) were achieved at a P S of 120 MPa, T P of 780°C, and T I of 250°C. Energy dispersive X-ray (EDX) analysis witnessed that T I has also a significant role in determining the quality of bond between the substrate and the melt. Scanning electron microscopy (SEM) depicts that the morphology of the fractured surface has a sound influence on both selected responses. Both the strength and hardness are noticed better if the fractured surface possesses the flat-faced morphology. Furthermore, an empirical regression model was developed using response surface methodology (RSM) design and validated through eight confirmatory experiments. RSM integrated multi-objective optimization genetic algorithm (MO-GA) was deployed to optimize the UTS and MH. The comparative results obtained from RSM and MO-GA demonstrated that the deviation in experimental and predicted values is less than 5%.

show abstract

“…For improving the clad performance, In the past two decades, many scholars had carried out lots of work on interface structure, bonding mechanism and bonding strength of Cu/Al clad plate and strip [10][11][12][13][14][15][16][17][18]. Takeshi et al [10] firstly investigated the influence of forming process on conductive property and interface structure of Cu/Al clad plate fabricated by explosive welding.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Interfacial Compounds Evolution in Ultra-Thin Roll Bonded Cu/Al/Cu Strip

Song

et al. 2014

KEM

View full text Add to dashboard Cite

Ultra-thin Cu/Al clad strip with 0.12 mm thickness was successfully fabricated by accumulative roll bonding and the interfacial structure of Cu/Al clad strip has been characterized by means of optical microscope (OM), energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM) and also X-ray diffraction (XRD). The intermetallic phases and their formation sequence at the interface was experimentally verified. And the growth kinetics of each phase was also modeled considering the diffusion controlled reaction mechanism. The effect of interfacial compounds on tensile fracture of ultra-thin Cu/Al clad strip was also studied. The obtained results indicate that, intermetallic compounds formed in the interface region of ultra-thin Cu/Al clad strip within the experimental condition are confirmed to be Al2Cu, Al4Cu9 and AlCu in sequence. The calculated activation energies for the growth of Al4Cu9, AlCu and Al2Cu are 101.45、114.30 and 95.15 kJ/mol, respectively. The major cracks propagate through the AlCu intermetallic layer and the Al2Cu / AlCu interface.

show abstract

Growth behavior of Cu/Al intermetallic compounds in hot‐dip aluminized copper

Cited by 17 publications

References 20 publications

Effect of surface polishing on the tribological performance of hard coatings under lubricated three-body abrasive conditions

Effect of surface polishing on the tribological performance of hard coatings under lubricated three-body abrasive conditions

Mechanical characterization of aged AA2026-AA2026 overcast joints fabricated by squeeze casting

Experimental Investigation of Interfacial Compounds Evolution in Ultra-Thin Roll Bonded Cu/Al/Cu Strip

Contact Info

Product

Resources

About