Welding cracks of Zn-contaminated stainless steel pipe

Shinohara, Takanobu; Matsumoto, Keīichi

doi:10.1016/0010-938x(82)90010-5

Cited by 16 publications

(2 citation statements)

References 1 publication

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“…Also, in general, keeping other parameters same, the impact strength was found to be improved when the welding was carried out using gas 2. This may be because of the fact that helium (present in gas 2) produces a "hotter arc" [14,15], which means that a lower heat input is required when compared to gas 1. The lesser heat input used for gas 2 is also clear from table 3.…”

Section: Resultsmentioning

confidence: 99%

Effect of Various Welding Parameters on the Mechanical Behaviour of 316L Stainless Steel-Galvanized Steel Weld

Shreyas

Panda

Kumar

2019

MSF

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Several case studies have shown that welding of stainless steel to galvanized steel leads to evolution of zinc which can penetrate through the steel and result in cracking, the present study focuses on determination of the effect of zinc on the mechanical behaviour of such weld joints. Welding was carried out using two shielding gas combinations. The other variations in parameters were heat input and presence or absence of zinc coating at the weld location. Tensile tests showed that the ductility of weld specimen improved when the coating was stripped off the samples prior to welding. Impact strength of weld specimens also followed similar trend. The impact strength was found to be improved when welding was done using Ar+2%He+2%O2 as shielding gas. The compressive strength was found to be similar. To explain the mechanical behaviour of the welded specimen, microstructural characterization of the weld region was carried out.

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Section: Resultsmentioning

confidence: 99%

Effect of Various Welding Parameters on the Mechanical Behaviour of 316L Stainless Steel-Galvanized Steel Weld

Shreyas

Panda

Kumar

2019

MSF

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“…Recently, serious industrial incidents of zinc-induced LME cracking in austenitic stainless steel have been reported [29,30]. The potential for cracking during field welding is certainly greater than the cracking potential in these test specimens.…”

Section: Effect Of Zinc Removal Prior To Weldingmentioning

confidence: 99%

Laser Beam Welding of Austenitic Stainless Steels – Similar Butt and Dissimilar Lap Joints

Elbatahgy¹

2012

Welding Processes

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GTAW can be tricky, but with a laser, it can be done successfully. Previous studies of the weldability of stainless steels indicate that the basic condition for ensuring high quality of welded joints and reducing thermal distortions to minimum is reducing the heat input of welding that is ensured only by laser welding. CO2 laser beam welding with a continuous wave, which is widely used for stainless steels components, is a high energy density and low heat input process. The result of this is a small heat-affected zone (HAZ), which cools very rapidly with very little distortion, and a high depth-to-width ratio for the fusion zone.

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Metal-induced embrittlement of materials

Lynch

1992

Materials Characterization

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Welding cracks of Zn-contaminated stainless steel pipe

Cited by 16 publications

References 1 publication

Effect of Various Welding Parameters on the Mechanical Behaviour of 316L Stainless Steel-Galvanized Steel Weld

Effect of Various Welding Parameters on the Mechanical Behaviour of 316L Stainless Steel-Galvanized Steel Weld

Laser Beam Welding of Austenitic Stainless Steels – Similar Butt and Dissimilar Lap Joints

Metal-induced embrittlement of materials

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