Electron Beam Welding of steel sheets treated by nitrooxidation

Marônek, Milan; Bárta, Jozef; Dománková, Mária; Ulrich, Koloman; Kolenic, F.

doi:10.1007/bf03321291

Cited by 7 publications

(10 citation statements)

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“…Previous studies (3,5,6) dealt with ways of welding steel sheets treated by nitrooxidation. Several defects were identified in most of the tested methods, e.g.…”

Section: Aimsmentioning

confidence: 99%

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Influence of the Surface Layer when the CMT Process Is Used for Welding Steel Sheets Treated by Nitrooxidation

Michalec¹,

Marônek²

2012

Acta Polytech

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Nitrooxidation is a non-conventional surface treatment method that can provide significantly improved mechanical properties as well as corrosion resistance. However, the surface layer is a major problem during the welding process, and welding specialists face many problems regarding the weldability of steel sheets. This paper deals with the properties of a nitrooxidized surface layer, and evaluates ways of welding steel sheets treated by nitrooxidation using a Cold Metal Transfer (CMT) process. The limited heat input and the controlled metal transfer, which are considered as the main advantage of the CMT process, have a negative impact on weld joint quality. An excessive amount of porosity is observed,probably due to the high content of nitrogen and oxygen in the surface layer of the material and the fast cooling rate of the weld pool.

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“…Previous studies (3,5,6) dealt with ways of welding steel sheets treated by nitrooxidation. Several defects were identified in most of the tested methods, e.g.…”

Section: Aimsmentioning

confidence: 99%

“…Nitrooxidation leads to a significant increase in corrosion resistance (up to level 10), and also an increase in mechanical properties, e.g. yield strength and tensile strength (1,2,3).…”

Section: Introductionmentioning

confidence: 99%

Influence of the Surface Layer when the CMT Process Is Used for Welding Steel Sheets Treated by Nitrooxidation

Michalec¹,

Marônek²

2012

Acta Polytech

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“…Laser welding of thin sheets is a common thing, however welding of these materials showed serious issues related to porosity and consistency of surface layer [1,4,6].…”

Section: Introductionmentioning

confidence: 99%

“…However, this type of treated steels has a great potential in industry, so the fatigue life of the weld joints has to be determined [2,7].…”

Section: Introductionmentioning

confidence: 99%

Fatigue properties of weld joint of steel sheets treated by PLASOX process

2017

Teh. vjesn.

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Original scientific papers The paper deals with the fatigue properties of weld joints of thin steel sheets DC01 as well as the fatigue properties of weld joints of steel sheets DC01 treated by the PLASOX process, which is patented by RÜBIG company. Fatigue properties of these steel sheets were consequently confronted with the fatigue properties of these materials without weld. Steel sheets were welded by fibre laser TruFiber 400. Fatigue life tests were carried out under bending load with frequency of 20 kHz on ultrasonic fatigue machine KAUP-ZU. On the fractured surfaces the fractographic analysis was carried out to determine the mechanism of rupture. The results proved that plasma nitrooxidation by PLASOX process had a positive effect on fatigue life of weld joints. Keywords: fatigue properties; laser welding; plasma nitrooxidation Svojstva zamora materijala zavarenog spoja čeličnih limova obrađenih PLASOX postupkomIzvorni znanstveni članak Rad se bavi svojstvima zamora zavarenih spojeva tankih čeličnih limova DC01 kao i svojstvima zamora zavarenih spojeva čeličnih limova DC01 obrađenih PLASOX postupkom, kojeg je patentiralo poduzeće RÜBIG. Svojstva zamora tih čeličnih ploča dosljedno su konfrontirana svojstvima zamora tih materijala bez zavara. Čelični limovi su zavareni laserskim vlaknom TruFiber 400. Probe na zamor materijala provedene su pod opterećenjem zbog savijanja s frekvencijom od 20 kHz na ultrazvučnom stroju KAUP-ZU. Na puknutim površinama provedena je fraktografska analiza kako bi se odredio mehanizam loma. Rezultati su dokazali da je plazma nitrooksidacija postupka PLASOX pozitivno djelovala na vijek trajanja do zamora zavarenih spojeva.

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“…The welding of surface treated steels is a challenge for all welding specialists, due to the surface layer exposing to a strong thermal affect by the welding process (Marônek et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Plasma Arc Welding of Steel Sheets Treated by Nitrooxidation

Michalec¹,

Marônek²

2011

DAAAM Proceedings

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Nitrooxidation is a non-conventional thermochemical treatment which significantly increases the mechanical properties as well as the corrosion resistance of the steel sheat. The paper deals with the welding possibility of this type of treated steel sheets by a plasma arc welding. Elimination of the porosity, most common issue of materials treated by nitrooxidation, was achieved. On the other hand, undercuts were observed

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Electron Beam Welding of steel sheets treated by nitrooxidation

Cited by 7 publications

References 1 publication

Influence of the Surface Layer when the CMT Process Is Used for Welding Steel Sheets Treated by Nitrooxidation

Influence of the Surface Layer when the CMT Process Is Used for Welding Steel Sheets Treated by Nitrooxidation

Fatigue properties of weld joint of steel sheets treated by PLASOX process

Plasma Arc Welding of Steel Sheets Treated by Nitrooxidation

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