Relationship between ferromagnetic properties and grain size of Inconel alloy 600

Kikuchi, Hiroaki; Takahashi, Hideki; Yanagiwara, H.; Murakami, Takeshi

doi:10.1016/j.jmmm.2014.12.041

Cited by 11 publications

(4 citation statements)

References 11 publications

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“…Wang et al [25] demonstrated that the grain boundary carbides only caused a significant loss in the reduction in area, but, otherwise had little effect on the other tensile properties on IN600. Kikuchi et al [26] reported that though IN600 usually exhibits paramagnetic properties, it shows ferromagnetic properties along the grain boundaries when chromium depletion occurs. This means that magnetic nondestructive evaluation of sensitization is possible.…”

Section: Microstructure Of the Base Metal And Weldsmentioning

confidence: 99%

Susceptibility of Dissimilar IN600 Welded Joints to Stress Corrosion Cracking Using Slow Strain Rate Test in Sodium Electrolytes

Granados-Becerra

López-Morelos

Contreras

et al. 2022

Metals

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The stress corrosion cracking (SCC) behavior of aged plates of Inconel 600 welded to Inconel 600 plates in the as-received condition was studied using the slow strain rate test (SSRT) in two sodium containing electrolytes at 25 and 80 °C. The aged plate was used to simulate damage by the operation service. Electrochemical noise (EN) was used to monitor the SCC. The plates were gas metal arc welded (GMAW) employing ERNiCrMo-3 and ER310 filler wires along with 95% Ar + 3% N2 + 2% O2 and 97% Ar + 3% N2 as the shielding gas, respectively. The microstructure of the welded joints was characterized using optical and scanning electron microscopy. The results of the SCC revealed that when sodium thiosulfate was used, the loss in plasticity was higher in the NiCrMo-3 joint with around a 20 percent decrease. Conversely, in the 310 welds, the loss in plasticity was higher in the sodium hydroxide, which diminished by 12 percent. A few secondary microcracks were observed in the transversal section in specimens of both welds. The results of the EN showed an increase in the potential and current when the sample reached the tensile strength and then decreased when the neck was formed; these changes indicate that some events occurred during the SSRT. The EN data showed two types of corrosion: general corrosion for NiCrMo-3 and mixed corrosion for the 310 welded joint in both environments. Electrochemical polarization was also employed to understand the mechanism of SCC.

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Section: Microstructure Of the Base Metal And Weldsmentioning

confidence: 99%

Susceptibility of Dissimilar IN600 Welded Joints to Stress Corrosion Cracking Using Slow Strain Rate Test in Sodium Electrolytes

Granados-Becerra

López-Morelos

Contreras

et al. 2022

Metals

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“…Average grain size is 27 µm for the as-received type and 101 µm for the solutionized type. 10 These specimens were thermally aged in vacuum (10 -3 Pa or less) at a temperature of 600 • C (873 K) for 1-400 hours. After thermal aging, the specimens were electro-polished to remove oxide layer, and then mirror finished.…”

Section: Test Specimensmentioning

confidence: 99%

“…Details of magnetic properties and compositional changes of thermally aged Inconel were reported in Reference. 10 In the present study, a high-sensitivity GMI sensor (MI-CB-1DM by Aichi Micro Intelligent Corp.) 11 was used to scan sample's surface and to determine magnetic field distribution, with a view of practical applications. First, a sample was magnetized by magnetic field applied in the thickness direction.…”

Section: Measurement Of Magnetic Propertiesmentioning

confidence: 99%

Magnetic nondestructive evaluation using higher sensitive magnetic field sensor for thermally aged Inconel 600 alloy

Kikuchi

Takahashi

Tschuncky

et al. 2021

Elect Comm in Japan

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“…Moreover, this phenomenon makes the clad sensitized, and the existence of Cr-depleted zones may promote intergranular corrosion [92]. Grain growth in welding of these alloys does not present any problems, since the initial grain size is coarse (~20-40 µm [85]). Accordingly, the driving force for grain growth is very low and similar to stainless steels.…”

Section: Bimetallic Interface After Weldingmentioning

confidence: 99%

Metallurgical Aspects in the Welding of Clad Pipelines—A Global Outlook

2019

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In the present work, the metallurgical changes in the welding of clad pipelines are studied. Clad pipes consist of a complex multi-material system, with (i) the clad being stainless steel or a nickel-based superalloy, (ii) the pipe being API X60 or X65 high-strength carbon steel, and (iii) the welding wire being a nickel-based superalloy or stainless steel in the root and hot pass, with a nickel or iron buffer layer, followed by filling with carbon steel wire. Alternatively, the corrosion resistant alloy may be used only. During production of the clad pipe, at the diffusion bonding temperature, substantial material changes may occur. These are carbon diffusion from the carbon steel to the clad, followed by the formation of hard martensite at the interface on cooling. The solidification behavior and microstructure evolution in the weld metal and in the heat-affected zone are further discussed for the different material combinations. Solidification behavior was also numerically estimated to show solidification parameters and resulting solidification modes.

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Relationship between ferromagnetic properties and grain size of Inconel alloy 600

Cited by 11 publications

References 11 publications

Susceptibility of Dissimilar IN600 Welded Joints to Stress Corrosion Cracking Using Slow Strain Rate Test in Sodium Electrolytes

Susceptibility of Dissimilar IN600 Welded Joints to Stress Corrosion Cracking Using Slow Strain Rate Test in Sodium Electrolytes

Magnetic nondestructive evaluation using higher sensitive magnetic field sensor for thermally aged Inconel 600 alloy

Metallurgical Aspects in the Welding of Clad Pipelines—A Global Outlook

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