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Uniaxial creep behavior of V-4Cr-4Ti alloy.

Description: We are undertaking a systematic study at Argonne National Laboratory to evaluate the uniaxial creep behavior of V-Cr-Ti alloys in a vacuum environment as a function of temperature in the range of 650-800 C and at applied stress levels of 75-380 MPa. Creep strain in the specimens is measured by a linear-variable-differential transducer, which is attached between the fixed and movable pull rods of the creep assembly. Strain is measured at sufficiently frequent intervals during testing to define t… more
Date: April 15, 2002
Creator: Natesan, K.; Soppet, W.K. & Purohit, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The effect of laser welding process parameters on the mechanical and microstructural properties of V-4Cr-4Ti structural materials.

Description: This paper reports on a systematic study which was conducted to examine the use of a pulsed Nd:YAG laser to weld sheet materials of V-Cr-Ti alloys and to characterize the microstructural and mechanical properties of the resulting joints. Deep penetration and defect-free welds were achieved under an optimal combination of laser parameters including focal length of lens, pulse energy, pulse repetition rate, beam travel speed, and shielding gas arrangement. The key for defect-free welds was found … more
Date: June 15, 2000
Creator: Reed, C.; Natesan, K.; Xu, Z. & Smith, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Corrosion performance of structural alloys.

Description: Component reliability and long-term trouble-free performance of structural materials are essential in power-generating and gasification processes that utilize coal as a feedstock. During combustion and conversion of coal, the environments encompass a wide range of oxygen partial pressures, from excess-air conditions in conventional boilers to air-deficient conditions in 10W-NO{sub x} and gasification systems. Apart from the environmental aspects of the effluent from coal combustion and conversi… more
Date: July 15, 1999
Creator: Natesan, K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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