Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2011-12-01

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

Included Journals: EI、SCIE、Scopus

Volume: 42A

Issue: 13

Page Number: 3853-3857

ISSN: 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.