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Indexed by:期刊论文

Date of Publication:2011-12-01

Journal:METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE

Included Journals:Scopus、SCIE、EI

Volume:42A

Issue:13

Page Number:3853-3857

ISSN No.:1073-5623

Abstract:The microsegregation/macrosegregation of Hastelloy C-276 weld joint in pulsed laser welding was investigated by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and electron probe microanalyzer (EMPA). The results indicated that during pulsed laser welding, the microsegregation was weakened compared with other welding process, and then the Brody-Flemings (BF) model with revised k was proposed to evaluate the element microsegregation in solid-solution strengthened Ni-based alloys. Also, no phenomenal macrosegregation was observed in the weld joint compared with the base metal.