Study on surface damages caused by turning NiCr20TiAl nickel-based alloy

Zou, Bin; Chen, Ming; Huang, Chuanzhen; An, Qinglong

doi:10.1016/j.jmatprotec.2009.06.017

Cited by 86 publications

(39 citation statements)

References 11 publications

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“…Also, Zhou et al [5] reported different types of defects such as cavities, carbides cracking and detachment from matrix, and cracks formed during machining. The same results have been reported by Zou et al [6] after machining of NiCr20TiAl superalloy.…”

Section: Introductionsupporting

confidence: 89%

Accurate determination of damaged subsurface layers in machined Inconel 718

Touazine

Jahazi

Bocher

2016

Int J Adv Manuf Technol

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The machining of high strength materials used in aeronautical applications generates damage on the subsurface layer which can significantly affect the fatigue life of the machined components. It is then important to distinguish between the damages due to machining from those caused by mechanical polishing operations used for sample observation. In this study, a new method is proposed to characterize and quantify properly the affected layer by machining and eliminate the impact from the defects originated during mechanical polishing. A protective layer of nickel coating was deposited on the machined surface. An optimum thickness of 100 µm was determined for the nickel layer to avoid any damage to the subsurface layer during sample preparation. The subsurface layer was analyzed using an automatic Knoop microhardness machine, laser-digital microscope and Electron BackScatter Diffraction (EBSD) microscopy.

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Section: Introductionsupporting

confidence: 89%

Accurate determination of damaged subsurface layers in machined Inconel 718

Touazine

Jahazi

Bocher

2016

Int J Adv Manuf Technol

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“…3a). This can be attributed to workpiece material softening due to low thermal conductivity of TiN coating (28 W/m⋅K) [16] and consequent flow towards the minor cutting edge. For larger feeds roughness increases as expected from the viewpoint of process kinematics.…”

Section: Methodsmentioning

confidence: 99%

Performance and wear mechanisms of whisker-reinforced alumina, coated and uncoated PCBN tools when high-speed turning aged Inconel 718

Bushlya

Zhou

Avdovic

et al. 2012

Int J Adv Manuf Technol

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“…From the experimental work of Ramakrishna and Shunmugam 44 , it is seen that the depth of the work hardening layer varies depending on the type of mechanical and thermal interaction. According to Zou et al 45 the evolution of microhardness of the machined surfaces was influenced by cutting speed, feed rate and depth of cut during turning NiCr20TiAl nickel-based alloy.…”

Section: Analysis Of Hardnessmentioning

confidence: 99%

Analysis of surface roughness and hardness in titanium alloy machining with polycrystalline diamond tool under different lubricating modes

Revankar¹,

Shetty

Rao

et al. 2014

Mat. Res.

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The present work deals with the investigation on machining of difficult-to-machine material titanium alloy (Ti-6Al-4V) using poly crystalline diamond (PCD) tool under different coolant strategies, namely dry, flooded and MQL. Taguchi technique has been employed and the optimization results indicated that MQL lubricating mode with cutting speed of 150 m/min, feed rate of 0.15 mm/rev, nose radius of 0.6 mm and 0.25 mm depth of cut is necessary to minimize surface roughness and dry mode with cutting speed of 150 m/min, feed rate of 0.15 mm/rev, nose radius of 0.6 mm and 0.75 mm depth of cut is necessary to maximize surface hardness. The results indicate the substantial benefit of the minimum quantity of lubrication (MQL) and justify PCD inserts to be the most functionally satisfactory commercially available cutting tool material for machining titanium alloys for better surface finish and hardness.

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Study on surface damages caused by turning NiCr20TiAl nickel-based alloy

Cited by 86 publications

References 11 publications

Accurate determination of damaged subsurface layers in machined Inconel 718

Accurate determination of damaged subsurface layers in machined Inconel 718

Performance and wear mechanisms of whisker-reinforced alumina, coated and uncoated PCBN tools when high-speed turning aged Inconel 718

Analysis of surface roughness and hardness in titanium alloy machining with polycrystalline diamond tool under different lubricating modes

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