Chang-Yong Kang
Ultimate tensile strengthEngineeringFerrite (iron)Boiler (power generation)Composite materialIntergranular corrosionMetallurgyGrain sizeMaterials scienceWeldingTemperingPitting corrosionAlloyDamping capacityMartensitic stainless steelModWeld metalDissimilar metalTreatment timeElongationAtmospheric temperature rangeCarbideVolume fractionAnnealing (metallurgy)QuenchingMicrostructureAusteniteDuplex (building)
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In this study, we investigated the effect of the residual carbides and tempered carbides precipitated by tempering treatment after quenching on the pitting corrosion of mod. 440A martensitic stainless steel. In quenched specimens and tempered specimens after quenching of mod. 440A martensitic stainless steel, the volume fraction of the residual carbides and total carbides decreased with the increase of the austenitizing temperature. Pitting resistance increased with the increase of austenitizing...
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Last. Chang-Yong KangH-Index: 1
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Last. Chang-Yong KangH-Index: 1
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#1Jae Hyoung LeeH-Index: 2
#2Gi-Jeong SeoH-Index: 4
Last. Chang-Yong KangH-Index: 1
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A specimen of weld metal was prepared by GTA welding with weld wire of super duplex stainless steel. Aging treatment was conducted for the sample at the temperature range of 700 to for 5 to 300 minutes. The effect of aging temperature and time to pitting corrosion of weld metal has been investigated and the results were derived as follows. The volume fraction of phase tends to increase with an increase of aging temperature and time. Pitting potential Ep representing pitting corrosion was found t...
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#1Jae Hyoung Lee (Pukyong National University)H-Index: 2
#2Byong-Ho JungH-Index: 1
Last. Chang-Yong KangH-Index: 1
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A specimen of weld metal was prepared by GTA welding with weld wire of super duplex stainless steel. Aging treatment was conducted for the sample at the temperature range of 700 to for 5 to 300 minutes. The effect of volume fraction of -phase to intergranular corrosion of weld metal has been investigated and the results were derived as follows. The volume fraction of phase tends to increase with an increase of aging temperature and time and intergranular corrosion of weld metal was increased by ...
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A specimen of weld metal was prepared by GTA welding with weld wire of super duplex stainless steel. Aging treatment was conducted for the sample at the temperature range of 700 to 900℃ for 5 to 300 minutes. The effect of volume fraction of σ-phase to intergranular corrosion of weld metal has been investigated and the results were derived as follows. The volume fraction of σ phase tends to increase with an increase of aging temperature and time and intergranular corrosion of weld metal was incre...
Abstract: This study was investigated the effect of austenitizing treatment the microstructure and mechanical properties in modified 440A steel, and the results were as follows. The amount of remaining carbide decreases with increasing the austenitizing treatment temperature, and all carbide is completely dissolved at 1250℃. The amount of remaining carbide decreases with increasing the austenitizing treatment time, but the carbide remains insoluble up to 120 minutes at 1050℃. The strength and ha...
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