Effects of heat input on microstructure of tungsten inert gas welding used hastelloy X

Title
Effects of heat input on microstructure of tungsten inert gas welding used hastelloy X
Author(s)
백응률시호탕[시호탕]박성상
Keywords
NICKEL-BASE SUPERALLOY; AFFECTED-ZONE; HOT CRACKING; SOLIDIFICATION; PRECIPITATION; INCONEL-718; BEHAVIOR; ALLOYS; HAZ
Issue Date
201405
Publisher
MANEY PUBLISHING
Citation
MATERIALS RESEARCH INNOVATIONS, v.18, pp.1074 - 1080
Abstract
The present work provides a microstructure examination of the weld zone (WZ) and heat affected zone (HAZ) associated with the low and high heat input tungsten inert gas (TIG) welding condition of used hastelloy X (HX). For both welding conditions, the segregation of the elements during solidification led to the formation of second phases (sigma and P phases). In low heat input condition, the heat from the WZ caused the dissolution of carbide in the HAZ, whereas in high heat input condition, there was no enough time for carbide to dissolve but simply melt in the grain boundaries. Liquid phase in the HAZ during welding decreased the tensile properties of this alloy. Transmission electron microscopy (TEM) and scanning electron microscope (SEM) were used to evaluate the formation of phases and liquated product respectively. Additionally, the geometry analysis by using ANSYS software was introduced to ensure the different in stress concentration.
URI
http://hdl.handle.net/YU.REPOSITORY/32302http://dx.doi.org/10.1179/1432891714Z.000000000559
ISSN
1432-8917
Appears in Collections:
공과대학 > 신소재공학부 > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE