Tool wear and surface roughness during machining of high-temperature aluminized steel

Sasaki, Tomohiro; Yakou, Takao

doi:10.1016/j.jmatprotec.2007.06.012

Cited by 8 publications

(2 citation statements)

References 13 publications

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“…[10][11][12][13][20][21][22][23][24][25] After 1 min hot-dip aluminizing treatment at 800°C, the maximum reported layer thickness consisting of Fe 2 Al 5 is about 200 mm.…”

Section: Identification Of the Solid And Liquid Phases At Experiments mentioning

confidence: 99%

Interfacial Reactions between Oxygen Containing Fe and Al at the Onset of Liquid Fe Deoxidation by Al Addition

et al. 2010

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“…[10][11][12][13][20][21][22][23][24][25] After 1 min hot-dip aluminizing treatment at 800°C, the maximum reported layer thickness consisting of Fe 2 Al 5 is about 200 mm.…”

Section: Identification Of the Solid And Liquid Phases At Experiments mentioning

confidence: 99%

Interfacial Reactions between Oxygen Containing Fe and Al at the Onset of Liquid Fe Deoxidation by Al Addition

et al. 2010

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“…Higher temperatures and longer diffusion times would be necessary to form Fe rich intermetallic compounds. 11 Recently, the formation of a Fe rich alloy layer consisting of FeAl and a-Fe with less than 30 wt-%Al was obtained by high temperature aluminising, [11][12][13][14][15][16] where hot dipped aluminised steel was subjected to a diffusion treatment at temperatures above 900uC. In the present study, more than two intermetallic layers were identified at the interface, including Fe rich phases and Al rich phases.…”

Section: Reaction Zone Microstructurementioning

confidence: 60%

Morphology of Al₂O₃inclusions formed at Fe/Fe–Al interface

Ende

Guo

Proost

et al. 2010

Ironmaking & Steelmaking

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Inside a silica tube, a piece of Al was brought in contact for a very short time (1-60 s) with liquid Fe containing different dissolved oxygen (O) levels (170-1800 ppm) at 1600uC. The purpose was to investigate the inclusion formation during the initial deoxidation period. Intermetallic compounds of the Fe-Al system appeared due to the interdiffusion of Fe and Al, and the reaction between Al and O at the interface gave rise to the formation of Al 2 O 3 inclusions. These inclusions showed different characteristics according to the initial O level in liquid Fe and the interaction time. With lower O content, the amount of inclusions decreased and faceted particles were dominant among the morphologies. While increasing the O content to 780 and 1800 ppm, the inclusion number increased drastically and numerous small spherical inclusions were observed. Further away from the reaction front, clusters of fine particles were formed through a collision-coagulation mechanism. The change in Al 2 O 3 morphology with the initial O content was interpreted as a consequence of different supersaturation degrees with respect to Al and O.

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Microstructure and elevated-temperature erosion-oxidation behaviour of aluminized 9Cr-1Mo Steel

Huttunen-Saarivirta

Honkanen

Tsipas

et al. 2012

Applied Surface Science

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Degradation of materials by a combination of erosive wear and atmospheric oxidation at elevated temper-atures constitutes a problem in some power generation processes, such as fluidized-bed combustion. In this work, 9Cr-1Mo steel, a common tube material in combustion chambers, is coated by a pack cemen-tation method from an Alcontaining pack in order to improve the resistance to erosion-oxidation at elevated temperatures. The resulting coating is studied in terms of microstructure and microhardness and tested for its resistance against impacts by sand particles in air at temperatures of 550-700 • C under several conditions, with thickness changes and appearance of the exposed surfaces being studied. The coating was found to contain several phases and layers, the outermost of which was essentially Al-rich and contained e.g., small AlN precipitates. The microhardness values for such coating ranged from 950 to 1100 HV 20g . The coating provided the substrate with increased protection particularly against normal particle impacts, as manifested by smaller thickness losses for coated specimens as compared to uncoated counterparts. However, much of the coating was lost under all test conditions, despite the fact that parti-cle debris formed a homogeneous layer on the surface. These results are described and discussed in this paper.

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Tool wear and surface roughness during machining of high-temperature aluminized steel

Cited by 8 publications

References 13 publications

Interfacial Reactions between Oxygen Containing Fe and Al at the Onset of Liquid Fe Deoxidation by Al Addition

Interfacial Reactions between Oxygen Containing Fe and Al at the Onset of Liquid Fe Deoxidation by Al Addition

Morphology of Al₂O₃inclusions formed at Fe/Fe–Al interface

Microstructure and elevated-temperature erosion-oxidation behaviour of aluminized 9Cr-1Mo Steel

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Tool wear and surface roughness during machining of high-temperature aluminized steel

Cited by 8 publications

References 13 publications

Interfacial Reactions between Oxygen Containing Fe and Al at the Onset of Liquid Fe Deoxidation by Al Addition

Interfacial Reactions between Oxygen Containing Fe and Al at the Onset of Liquid Fe Deoxidation by Al Addition

Morphology of Al2O3inclusions formed at Fe/Fe–Al interface

Microstructure and elevated-temperature erosion-oxidation behaviour of aluminized 9Cr-1Mo Steel

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Morphology of Al₂O₃inclusions formed at Fe/Fe–Al interface