Microstructures and oxidation behavior of NiCrAlCoY-Al composite coatings on Ti-6Al-4V alloy substrate via high-energy mechanical alloying method

Li, Yifeng; Chen, Cheng; Han, Tengfei; Ranabhat, Jwala; Feng, Xin; Shen, Yifu

doi:10.1016/j.jallcom.2016.10.171

Cited by 30 publications

(9 citation statements)

References 25 publications

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“…Wear behavior depends on the attributes of the coating such as thickness, load bearing capacity, and hardness. Research about the sliding wear behavior of the 303 stainless steel included in [23,24], pointed out the existence of a substantial transfer of material during sliding to the alumina ball, close to that observed in the study of wearing and friction under dry conditions. It was noted that the uncoated substrate exhibited minimum resistance to alumina wear.…”

Section: Introductionsupporting

confidence: 64%

Wearing Behavior of the α-Al9FeMnSi Intermetallic Compound Formed by Reactive Sintering onto AISI 304L Stainless Steel

Ibarra¹,

Valdés²,

Escobedo‐Bocardo³

et al. 2020

Metals

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In this study, using mixtures of pure Al, Si, Mn, and Fe powders, the α-Al9FeMnSi intermetallic compound was formed onto AISI 304L stainless steel samples by reactive sintering. The processing parameters were temperature (800, 850, and 900 °C) and applied pressure (15 and 20 MPa), using a constant holding time of 7200 s. In this paper, the influence of pressure and temperature on the microstructure, microhardness, and wear resistance of the formed layers was studied. Using X-ray diffraction (XRD), scanning electron microscopy (SEM), microhardness testing, and wearing measurements (pin on disc tests), the cross-section and top side of the coatings were observed and analyzed. We were able to determine the phase composition of cladded layers and interfaces as well as their morphology. The results indicated that several layers were formed during reactive sintering, i.e., an Al-diffusion layer on the top of the substrate, an interface, and the α-Al9FeMnSi coating itself. The microhardness values of the different layers formed were determined, ranging from 400 to 500 HV for the intermetallic coating, to 120 HV for the substrate. In this way, it was found that the formed intermetallic coating is suitable to increase the corrosion resistance of stainless steel. Additionally, all the coating showed high adherence to the substrate, exhibiting high microhardness and wear resistance. Pin on disc wearing tests showed the wearing mechanisms are predominantly delamination and ablation of the cladded layers and substrate.

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Section: Introductionsupporting

confidence: 64%

Wearing Behavior of the α-Al9FeMnSi Intermetallic Compound Formed by Reactive Sintering onto AISI 304L Stainless Steel

Ibarra¹,

Valdés²,

Escobedo‐Bocardo³

et al. 2020

Metals

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“…To increase the working temperature limit, Ti-6Al-4V has been coated with different materials [11], e.g. materials based on Ti-Al [12][13][14], Ti-Al-Nb-Si [15], TiAl(Si)N [16,17], NiCrAl [18], Nb [19], Y 2 O 3 [20], SiO 2 -Al 2 O 3 [21].…”

Section: Introductionmentioning

confidence: 99%

Coupling powder bed additive manufacturing and vapor phase deposition methods for elaboration of coated 3D Ti-6Al-4V architectures with enhanced surface properties

Moll

Blandin

Dendievel

et al. 2021

Surface and Coatings Technology

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We propose an innovative process coupling powder bed additive manufacturing by Electron Beam Melting (EBM) with Chemical Vapor Deposition (CVD) and Atomic Layer Deposition (ALD) to develop 3D Ti-6Al-4V structures covered with AlN coating. Despite of the high reactivity of Ti-6Al-4V with nitrogen, thick ( 10 µm) and conformal AlN films are deposited by CVD on Ti-6Al-4V substrates with high surface roughness. An AlN under-layer deposited by ALD is necessary to mitigate the reaction between Ti-6Al-4V and the nitrogen precursor NH 3(g) and to limit the formation of brittle titanium nitride phases. We have thus achieved an adherent coating without any modification of the Ti-6Al-4V microstructure at the core of the substrate. We show that a 7 µm thick AlN coating is efficient in protecting Ti-6Al-4V against cyclic oxidation at 650°C for at least 650 h. This study opens new opportunities for the design of coated 3D Ti-6Al-4V structures for use in high temperature oxidizing environments.

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“…Vanadium and aluminum vanadium (AlV) alloys are of the most important master alloys, which are promising materials in high temperature alloy and some special alloys fields. The addition of vanadium and aluminum can significantly improve the performance of heat resistance and cold working on the titanium alloy and achieves high mechanical strength [1,2]. Therefore, AlV alloy and titanium alloy are widely used in the military and the aerospace industries [3,4].…”

Section: Introductionmentioning

confidence: 99%

A Novel Method of Fabricating Al-V Intermetallic Alloy through Electrode Heating

Wan

Li³

et al. 2019

Metals

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A novel method was developed to produce AlV55 alloy through reducing impurities content and component segregation with electrode assisted heating technology. This new process synergistically integrates a few low-cost process techniques, including granulation, mixing, and electro-heating to produce AlV55 alloy. During the heating process, the CaO is used as an additive in the raw materials. The uniform of AlV55 alloy composition and low impurities content are effectively controlled by this process. The analysis results show that Si (0.13 wt%), Fe (0.22 wt%), N (0.007 wt%), C (0.078 wt%), and O (0.051 wt%) impurities in the AlV55 products were reduced, which met the commercial standard (TS/T 579-2014), and V content ranged from 57.5 to 58.5 wt% when the Al/V2O5 mass ratio was 0.94:1. This method can realize the controllability of the reaction process and is suitable for large-scale industrial production.

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Microstructures and oxidation behavior of NiCrAlCoY-Al composite coatings on Ti-6Al-4V alloy substrate via high-energy mechanical alloying method

Cited by 30 publications

References 25 publications

Wearing Behavior of the α-Al9FeMnSi Intermetallic Compound Formed by Reactive Sintering onto AISI 304L Stainless Steel

Wearing Behavior of the α-Al9FeMnSi Intermetallic Compound Formed by Reactive Sintering onto AISI 304L Stainless Steel

Coupling powder bed additive manufacturing and vapor phase deposition methods for elaboration of coated 3D Ti-6Al-4V architectures with enhanced surface properties

A Novel Method of Fabricating Al-V Intermetallic Alloy through Electrode Heating

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