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5篇 您的检索式：作者名="K. Vasu"

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		题名	作者	年代	出处	被引量
	1	Effect of fusion welding processes on tensile properties of armor grade, high thickness, non-heat treatable aluminium alloy joints显示文摘AA5059 is one of the high strength armor grade aluminium alloy that finds its applications in the military vehicles due to the higher resistance against the armor piercing (AP) threats. This study aimed at finding the best suitable process among the fusion welding processes such as gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW) by evaluating the tensile properties of AA5059 aluminium alloy joints. The fracture path was identified by mapping the low hardness distribution profile (LHDP) across the weld cross section under tensile loading. Optical and scanning electron microscopies were used to characterize the microstructural features of the welded joints at various zones. It is evident from the results that GTAW joints showed superior tensile properties compared to GMAW joints and this is primarily owing to the presence of finer grains in the weld metal zone (WMZ) and narrow heat-affected zone (HAZ). The lower heat input associated with the GTAW process effectively reduced the size of the WMZ and HAZ compared to GMAW process. Lower heat input of GTAW process results in faster cooling rate which hinders the grain growth and reduces the evaporation of magnesium in weld metal compared to GMAW joints. The fracture surface of GTAW joint consists of more dimples than GMAW joints which is an indication that the GTAW joint possess improved ductility than GMAW joint.	K. Vasu H. Chelladurai Addanki Ramaswamy S. Malarvizhi V. Balasubramanian	2019	Defence Technology(防务技术)2019，15，3：	4
	2	Transition metal-based cathodes for hydrogen evolution in alkaline solution: Electrocatalysis on nickel-based ternary electrolytic codeposits显示文摘	I. Arul Raj K. I. Vasu	1992	Journal of Applied Electrochemistry1992，，5：	1
	3	Transition metal-based cathodes for hydrogen evolution in alkaline solution: Electrocatalysis on nickel-based ternary electrolytic codeposits显示文摘	I. Arul Raj K. I. Vasu	1992	Journal of Applied Electrochemistry1992，，5：	1
	4	Transition metal-based hydrogen electrodes in alkaline solution — electrocatalysis on nickel based binary alloy coatings显示文摘	I. Arul Raj K. I. Vasu	1990	Journal of Applied Electrochemistry1990，，1：	1
	5	Improvement of Plasma Performance with Lithium Wall Conditioning in Aditya Tokamak显示文摘Lithiumization of the vacuum vessel wall of the Aditya tokamak using a lithium rod exposed to glow discharge cleaning plasma has been done to understand its effect on plasma performance. After the Li-coating, an increment of ~100 eV in plasma electron temperature has been observed in most of the discharges compared to discharges without Li coating, and the shot reproducibility is considerably improved. Detailed studies of impurity behaviour and hydrogen recycling are made in the Li coated discharges by observing spectral lines of hydrogen, carbon, and oxygen in the visible region using optical fiber, an interference filter, and PMT based systems. A large reduction in O I signal (up to ~ 40% to 50%) and a 20% to 30% decrease of H α signal indicate significant reduction of wall recycling. Furthermore, VUV emissions from O V and Fe XV monitored by a grazing incidence monochromator also show the reduction. Lower Fe XV emission indicates the declined impurity penetration to the core plasma in the Li coated discharges. Significant increase of the particle and energy confinement times and the reduction of Z eff of the plasma certainly indicate the improved plasma parameters in the Aditya tokamak after lithium wall conditioning.	M. B. CHOWDHURI R. MANCHANDA J. GHOSH S. B. BHATT Ajai KUMAR B. K. DAS K. A. JADEJA P. A. RAIJADA Manoj KUMAR S. BANERJEE Nilam RAMAIYA Aniruddh MALI Ketan M. PATEL Vinay KUMAR P. VASU R. BHATTACHARYAY R. L. TANNA Y. Shankara JOISA P. K. ATREY C. V. S. RAO D. Chenna REDDY P. K. CHATTOPADHYAY R. JHA Y. C. SAXENA Aditya team	2013	Plasma Science and Technology2013，15，2：	0

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