Microstructure study of cold sprayed 50%Ni–50%Cr coating on Inconel-601

Singh, Harminder; Sidhu, T. S.; Kalsi, Sukhminderbir Singh

doi:10.1080/02670844.2015.1119507

Cited by 13 publications

(6 citation statements)

References 32 publications

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“…All the alloying elements appear very uniformly distributed. In IN625 alloy, it is fundamental to identify the effect of each single alloying element [43,44]; these properties are summarised in Table 2.…”

Section: Resultsmentioning

confidence: 99%

Fatigue behaviour of Inconel 625 cold spray coatings

Cavaliere

Perrone

Silvello

2018

Surface Engineering

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Cold spray coatings were produced with Inconel 625 powders sprayed on a heat-treated Inconel 718 substrate. The processing parameters were varied to analyse the microstructural and mechanical variations as a function of cold spray conditions. Cold spray can contribute to improve the fatigue properties of repaired components; the best process conditions, leading to low porosity and high adhesion strength, were employed to produce coatings in notched samples to evaluate the fatigue crack behaviour of the sprayed material. The coatings were heat treated to evaluate the material microstructural evolution and mechanical properties. The crack initiation and growth behaviour of the coatings was studied also for the solution and precipitation hardening heat treatment condition to compare the fatigue behaviour with that belonging to the as sprayed one. It was demonstrated that the heat treatment has a beneficial effect on fatigue cracks retardation.

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Section: Resultsmentioning

confidence: 99%

Fatigue behaviour of Inconel 625 cold spray coatings

Cavaliere

Perrone

Silvello

2018

Surface Engineering

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“…This may be owing to the large amount of cold working involved during this process. However, to improve the ductility of coldsprayed coatings/materials, without significant reduction in strength, distinct post-processing heat treatments of coating materials and optimization of processing conditions are usually utilized [219][220][221][222][223]. The tensile characteristics of CS coatings after post coating heat treatment are summarized in Table 5.…”

Section: Tensile Characteristicsmentioning

confidence: 99%

Influence of processing conditions on the mechanical, tribological and fatigue performance of cold spray coating: a review

Kumar

2022

Surface Engineering

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Cold spray is an emerging surface coating technology for rapidly developing thick coating, thin films and additive manufacturing of parts at relatively low temperatures. The low cost and scalability of a cold spray method make it promising for diverse industrial applications. Presently, the cold spray coating is widely used for the production of machine parts, materials and tools that requires the desired surface properties. However, the consideration of process parameters setting develops a reliable coating having high mechanical, tribological, fatigue and morphological properties for demanding coating applications. Hence, the aim of this paper is to study the effect of processing conditions (pressure and temperature of propellant gas, powder particle morphology and post-process treatments) on the tribological and mechanical properties of cold-sprayed coatings. Further, the effect of microstructure and processing conditions on the fatigue and static characteristics of cold spray material is also discussed.

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“…Experimental evidence thus pointed to a strong correlation between cracking in the welded zone and the presence of gaps. Hightemperature corrosion of Inconel 601 has been analyzed extensively in the literature [3,4]. However, the present paper analyzes the synergetic effects between Cu-Inconel 601 interface pollution, heat treatment-induced Inconel yielding, and cracking due to micro-movement during bending.…”

Section: Introductionmentioning

confidence: 99%

“…To resist high-temperature wear and corrosion, ground electrodes of spark plugs formed by a copper core and a high-temperature corrosion-resistant Nickel-based alloy mantle have been developed. Inconel 601 is the material of choice for high-temperature corrosive environments [3,4].…”

Section: Introductionmentioning

confidence: 99%

New Design of Copper–Inconel 601 Ground Electrode Spark Plug Based on a Thermo-Mechanical Model

et al. 2020

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Inconel 601 is one material of choice for intermediate- to high-temperature protective coatings for spark plugs’ ground electrodes. Production of ground electrodes of spark plugs implies the following operations: the tamping of the copper core in an Inconel 601 cup, cold-forming of the assembly, annealing, welding, and bending of the final spark plug. On the production line, the use of Inconel 601 as a protective coating for ground electrodes leads to possible cracking in the welded area after bending. In the present paper, possible causes of cracking are analyzed. It is clearly shown that a combination of Copper –Inconel interface oxidation, Inconel yielding during the heat treatment, and micro-movements during bending lead to cracks in the welded area of the ground electrode. First, the detrimental effect of gaps, between Copper and Inconel 601, is shown experimentally. Second, a thermo-mechanical analysis combined with SEM (Scanning Electron Microscopy) observations identified the annealing treatment and interface oxidation as the main cause of gaps. Third, bending simulations show the relation between these gaps and cracking. Finally, a new ground electrode design, preventing cracks, is suggested.

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Microstructure study of cold sprayed 50%Ni–50%Cr coating on Inconel-601

Cited by 13 publications

References 32 publications

Fatigue behaviour of Inconel 625 cold spray coatings

Fatigue behaviour of Inconel 625 cold spray coatings

Influence of processing conditions on the mechanical, tribological and fatigue performance of cold spray coating: a review

New Design of Copper–Inconel 601 Ground Electrode Spark Plug Based on a Thermo-Mechanical Model

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