Characteristics of the weld interface in dissimilar austenitic-pearlitic steel welds

Journal Article · Thu Sep 01 04:00:00 EDT 1994 · Materials Characterization; (United States)

DOI:https://doi.org/10.1016/1044-5803(94)90070-1· OSTI ID:7158026

Pan, C; Zhang, Z ^[1]

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1. Wuhan Transportation Univ. (China). Dept. of Marine Mechanical Engineering

The weld interface in dissimilar alloy welds between austenitic and pearlitic steels was observed directly by using scanning and transmission electron microscopy, and energy-dispersive x-ray spectrometry. Two types of weld interface were found in the joints. One was the austenite/martensite-like interface that formed the boundary between the mixed weld metal zone and the partially mixed transitional zone. The other is the martensite-like/ferrite interface that is the true liquid-solid boundary of the joint. These interfaces can exist independently in different joints and can also coexist in one joint, depending on the Cr and Ni contents of the filler metals and alloy in the base metals. The formation mechanism of the weld interface and its effect on the mechanical properties of the welded joint are discussed.

• OSTI ID: 7158026
• Journal Information: Materials Characterization; (United States), Journal Name: Materials Characterization; (United States) Vol. 33:2; ISSN 1044-5803; ISSN MACHEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360100* -- Metals & Alloys
ALLOYS
AUSTENITE
CARBON ADDITIONS
CARBON STEELS
FABRICATION
FERRITE
IRON ALLOYS
IRON BASE ALLOYS
JOINING
JOINTS
LOW ALLOY STEELS
MARTENSITE
MECHANICAL PROPERTIES
PEARLITE
PHASE STUDIES
STEELS
WELDED JOINTS
WELDING