%0 Journal Article
%T Microstructure Evolution of Electron Beam Physical Vapour Deposited Ni-23.5Cr-2.66Co-1.44Al Superalloy Sheet During Annealing at 600 ¡ãC
%A Mingwei
%A Li
%A Gang
%A Zeng
%A Yesheng
%A Zhong
%A Fei
%A He
%A Xiaodong
%A He
%J Materials Research
%D 2013
%I ABM, ABC, ABPol, SBCC, SBCr, SBMM, SBPMat
%R 10.1590/S1516-14392012005000145
%X microstructure evolution of electron beam physical vapour deposited (eb-pvd) ni£¿23.5cr£¿2.66co£¿1.44al superalloy sheet during annealing at 600 ¡ãc was investigated. the results showed that the as-deposited alloy was composed of only g phase. after annealing at 600 ¡ãc, the locations of diffraction peaks were still the same. the (220) diffraction peak of the deposition side increased with annealing time. the sheet on deposited side had a tendency toward forming (220) texture during post-annealing. no obvious texture was observed at as-deposited and annealed sheet at 600 ¡ãc in substrate side. the count and size of "voids" decreased with time. the size of grains increased obviously with annealing time. the ultimate tensile strength of eb-pvd ni-23.5cr-2.66co-1.44al alloy sheet increased from 641 mpa to 829 mpa after annealing at 600 ¡ãc for 30 hours.
%K physical vapour deposited (eb-pvd)
%K ni-based superalloy
%K annealing
%K microstructure.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1516-14392013000100011&lng=en&nrm=iso&tlng=en