Accession Number : ADA268264


Title :   Atlas of Formability: Nickelvac C-276


Descriptive Note : Final rept. 30 Sep-31 Nov 92,


Corporate Author : NATIONAL CENTER FOR EXCELLENCE IN METALWORKING TECHNOLOGY JOHNSTOWN PA


Personal Author(s) : Chaudhury, Prabir K ; Zhao, Dan


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a268264.pdf


Report Date : 30 Nov 1992


Pagination or Media Count : 70


Abstract : In this investigation, flow behavior of Nickelvac C-276 alloy was studied by conducting compression tests over a wide range of temperatures (950 - 1200 C) and strain rates (0.001 - 20 s-1). The true stress strain flow curves are presented for each test condition. Constitutive relations were determined from the flow behavior, and a dynamic material modeling was performed on this alloy. Thus, the optimum processing condition in terms of temperature and strain rate was identified as 1075 C and 0.001 s-1 for this alloy. Microstructural changes during high temperature deformation were also characterized, and selective micrographs are presented together with corresponding flow curves. Dynamic recrystallization and grain growth occurred during high temperature deformation over the range of temperatures tested. The recrystallization is complete at 1050 C and 0.001 s-1. This report supplies ample mechanical property and microstructure data on Nickelvac C-276 alloy for engineers in the field of metalworking process design. The data presented here are also essential in finite element analysis of metalworking processes.


Descriptors :   *MECHANICAL PROPERTIES , *ALLOYS , *METALWORKING , *COMPRESSIBLE FLOW , TEST AND EVALUATION , COMPRESSION , HIGH TEMPERATURE , GRAIN GROWTH , RECRYSTALLIZATION , STRAIN RATE , DEFORMATION , FINITE ELEMENT ANALYSIS , MICROSTRUCTURE , TEMPERATURE


Subject Categories : Properties of Metals and Alloys
      Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE