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3篇 您的检索式:作者名="S.K. ALBERT"
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1Study on hydrogen assisted cracking susceptibility of HSLA steel by implant test显示文摘DMR-249 A is an indigenously developed high strength low alloy steel for Indian ship building industry for making ship-hull and is extensively used in the construction of war ships and submarines. Welding electrodes conforming to SFA 5.5 AWS E8018 C1 has been indigenously developed for welding of this steel using shielded metal arc welding process. In the present study, susceptibility to hydrogen assisted cracking of DMR-249 A steel welds made using this electrode has been assessed using implant test. Implant tests were conducted using this electrode at two different levels of diffusible hydrogen, measured using gas chromatography technique. It is observed that both the steel and the welding consumable are not susceptible to hydrogen assisted cracking even with a high diffusible hydrogen level of 9 m L/100 g of weld metal. In implant tests, specimen did not fracture even after loading to stress levels higher than the yield strength of the base metal. The good resistance of this steel and the welding consumable, even with high levels of diffusible hydrogen, is attributed to absence of a susceptible microstructure in both the weld metal and heat affected zone. Hence, this study shows that, in the absence of a susceptible microstructure, hydrogen assisted cracking is unlikely to occur even if hydrogen level is high. It also confirms that in welding of DMR-249 A with indigenously developed E8018 C1 electrode, hydrogen assisted cracking is not a concern and no preheating is required to avoid it during welding.Gopa CHAKRABORTY R. REJEESH S.K. ALBERT 2016Defence Technology(防务技术)2016,12,6:2
2Comparison of Microstructure and Properties of Modified 9Cr-1Mo Welds Produced by Narrow Gap Hot Wire and Cold Wire Gas Tungsten Arc Welding Processes显示文摘Aravinda Pai Irappa Sogalad S.K. Albert Prabhat Kumar T.K. Mitra S. Basavarajappa 2014Procedia Materials Science2014,,:1
3Development of filler wires for welding of reduced activation ferritic martenstic steel for India’s test blanket module of ITER显示文摘G. Srinivasan B. Arivazhagan S.K. Albert A.K. Bhaduri 2011Fusion Engineering and Design2011,,4:1
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