Assessment of the effects of heat input on microstructure and mechanical properties in laser beam welded Haynes 188 undermatched joints

Odabasi, A Y; Ünlü, Necip; Göller, Gültekin; Kayalı, E. Sabri; Eruslu, M. N.

doi:10.1016/j.msea.2012.09.017

Cited by 11 publications

(5 citation statements)

References 42 publications

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“…[23] Adabasi et al found a similar positive correlation between the secondary dendritic arm spacing and the welding energy for Haynes 188 alloy. [14] The difference between Odabasi et al 's results and those of this study may be due to the fact that Odabasi et al used CO 2 laser welding, and a CO 2 laser beam has a wavelength ten times greater than that of a Yb:YAG laser beam. Additionally, their sheet thickness was 2.1 mm, i.e., thicker than that of this study.…”

Section: B Microstructure Of Optimized Weldscontrasting

confidence: 75%

“…Odabasi et al furthermore showed that the beads mechanical properties were inferior to those of the parent material. [14] These mechanical properties deteriorated with increasing energy used, which was attributed by the authors to an increase in the interdendritic spacing. The fracture of welded samples was described as ductile.…”

Section: Introductionmentioning

confidence: 93%

“…[13] A small number of works on laser welding of Haynes 188 alloy have been published. Odabasi et al [14] analyzed the geometries of CO 2 laser welds as a function of the energy implementation. They showed that the width of the welds and more generally the fusion zone (FZ) volume increased with the amount of energy used.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Yb:YAG Laser Beam Parameters on Haynes 188 Weld Fusion Zone Microstructure and Mechanical Properties

Graneix

Béguin

Alexis

et al. 2017

Metall Mater Trans B

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Section: B Microstructure Of Optimized Weldscontrasting

confidence: 75%

Section: Introductionmentioning

confidence: 93%

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Influence of Yb:YAG Laser Beam Parameters on Haynes 188 Weld Fusion Zone Microstructure and Mechanical Properties

Graneix

Béguin

Alexis

et al. 2017

Metall Mater Trans B

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“…22 Larger seam widths of surface, mid, and root regions were obtained when the heat input was increased. 23 Bastien Toubhans et al in their study (2020) showed that wear has limited influence on residual stresses profiles shape while the flank wear VB remains under a critical value between 0.15 and 0.2 mm. 24 Xiaolin Pang et al in their study (2020) had discussed that cutting parameters had similar influence on the cutting force and surface quality compared to feed rate, spindle speed, and axial depth of cut, and radial depth of cut played a main role.…”

Section: Resultsmentioning

confidence: 97%

Evaluation of the cutting forces, the surface roughness, and the tool wear characteristics during machining of cobalt-based superalloy Haynes 188 with ceramic cutting tool

Altın

2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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In this research, we had studied the sensitivity for machining of cobalt-based superalloy Haynes 188 with ceramic cutting tool. The investigation had focused on the effects of the cutting speed, on the cutting forces, and on the surface roughness based on Taguchi’s experimental design. The effects of machining parameters were determined using Taguchi’s L27 orthogonal array. The signal-to-noise ratio was calculated for the average of surface roughness and the cutting forces, and the smaller were used to determine the optimal cutting conditions. The analysis of variance and the signal-to-noise ratio had effects on the parameters on both surface roughness and cutting. Three different types of cutting tools had been used in the experiment, namely KYON 4300, KYS 25, and KYS 30. The cutting force of Fz was considered to be the main cutting force. Depending on the material which had been used as cutting tool, the Fz had the lowest cutting speed and the lowest surface roughness with the KYS25 ceramic tool. The cutting force and the surface roughness of KYON 4300 cutting tool had shown better performance than other cutting tools. The flank wear and notch were found to be more effective in the experiments. The long chips were removed at low and medium cutting speeds, while the sawdust with one edge and narrow pitch at high cutting speeds was obtained.

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“…Lasersko zavarivanje je zavarivanje visoke gustine energije. Zavarivanje laserom nudi mnoge prednosti u odnosu na konvencionalne metode zavarivanja, a to su: visoka brzina zavarivanja, uska zona uticaja toplote, niska distorziju, jednostavnost automatizacije, mogućnost zavarivanja debelih preska u jednom prolazu i poboljšanu fleksibilnost dizajna [4][5][6][7][8]. Jedna od mnogih karakteristika laserskog zavarivanja je sposobnost zavarivanja bez dodatnog materijala.…”

Section: Uvodunclassified

Picosecond laser shock peening of base Nimonic 263 material and laser welded Nimonic 263 alloy

Petronić¹,

Burzić²,

Milovanović³

et al. 2015

Zavarivanje i zavarene konstrukcije

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Kljucne reči: zavarivanje laserom, obrada laserom, ispitivanje zatezanjem, mikrostruktura,superlegura Ni Key words: laser welding, laser treatment, tensile testing, microstructure, superalloy Ni AbstractLaser welding is a welding process with a high energy density and numerous advantages over conventional welding methods (narrow heat affected zone, lower heat input, less distortion, and the like.) Mechanical treatment laser is an innovative technique for improving the properties of fatigue resistance, abrasion and corrosion resistance. In this paper, mechanically processed by laser two groups of samples; base materials and laser welded joints. Sheets made of Ni superalloy 2mm thick -millisecond Nd: YAG laser, while the mechanical treatment made picosecond Nd: YAG laser. Welds are tensile tested, and microstructure was observed by optical and scanning electron microscopy. The microhardness was measured by Vickers method with a load of 10 N. IzvodLasersko zavarivanje je proces zavarivanja sa velikom gustinom energije i mnogobrojnim prednostima u odnosu na konvencionalne metode zavarivanja (uska zona uticaja toplote, manji unos toplote, manja distorzija i sl.) Mehanička obrada laserom je inovativna tehnika kojom se poboljšavaju karakteristike otpornosti na zamor, habanje i otpornost na koroziju. U ovom radu, mehanički su obrađene laserom dve grupe uzoraka; osnovnog materijala i laserski zavarenih spojeva. Limovi superlegure debljine 2mm su zavareni milisekundnim Nd:YAG laserom, dok je mehanička obada obavljena pikosekundnim Nd:YAG laserom. Zavareni spojevi su ispitani zatezanjem, a mikrostruktura je posmatrana optičkim i skenirajućim elektronskim mikroskopom. Mikrotvrdoća je merena po Vikersu sa opterećenjem od 10 N. UvodNimonik 263 je superlegura nikla, projektovana za rad na visokim pritiscima i temperaturama. Ova superlegura ima dobru otpornost na koroziju, optimalne termičke karakteristike, kombinovane sa dobrom duktilnošću, otpornosti na puzanje i na zamor, kao i na otpornost na habanje [1][2][3]. U praksi se često koristi kada se od zavarenih spojeva očekuje bolja duktilnost. Lasersko zavarivanje je zavarivanje visoke gustine energije. Zavarivanje laserom nudi mnoge prednosti u odnosu na konvencionalne metode zavarivanja, a to su: visoka brzina zavarivanja, uska zona uticaja toplote, niska distorziju, jednostavnost automatizacije, mogućnost zavarivanja debelih preska u jednom prolazu i poboljšanu fleksibilnost dizajna [4][5][6][7][8]. Jedna od mnogih karakteristika laserskog zavarivanja je sposobnost zavarivanja bez dodatnog materijala. Mehanička obrada laserom (laser shock peening) je, za razliku od laserskog zavarivanja, mehanička obrada bez topljenja materijala. Ovom obradom se poboljšavaju karakteristike zamora materijala, otpornost na interkristalnu koroziju, otpornost na habanje i oksidaciju, kao i mehaničke osobine materijala. Ako se mehanička obrada laserom uspešno primenjuje, performanse zamora metalnih

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Assessment of the effects of heat input on microstructure and mechanical properties in laser beam welded Haynes 188 undermatched joints

Cited by 11 publications

References 42 publications

Influence of Yb:YAG Laser Beam Parameters on Haynes 188 Weld Fusion Zone Microstructure and Mechanical Properties

Influence of Yb:YAG Laser Beam Parameters on Haynes 188 Weld Fusion Zone Microstructure and Mechanical Properties

Evaluation of the cutting forces, the surface roughness, and the tool wear characteristics during machining of cobalt-based superalloy Haynes 188 with ceramic cutting tool

Picosecond laser shock peening of base Nimonic 263 material and laser welded Nimonic 263 alloy

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