High Temperature Plasticity of TP347H Stainless Steel Welded Joint Heat Affected Zone

Simulated Heat Affected Zone (HAZ) samples of TP347H stainless steel welded joint with 800-1380°C peak temperature thermal cycles were produced using Gleeble 3180 thermal mechanical simulator. 600°C constant speed tensile tests for simulated HAZ samples were carried out, and the precipitates of the...

Full description

Saved in:
Bibliographic Details
Published in:Key engineering materials 2021-04, Vol.881, p.19-24
Main Authors: Zhu, Qiu Hua, Chen, Zhong Bing, Liu, Yan, Song, Jian Xing
Format: Article
Language:English
Subjects:
Grain boundaries
Heat affected zone
Heat resistant steels
High temperature
Niobium carbide
Plastic deformation
Plastic properties
Precipitates
Reduction of area
Stainless steels
Tensile tests
Thermal simulation
Thermal simulators
Welded joints
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Simulated Heat Affected Zone (HAZ) samples of TP347H stainless steel welded joint with 800-1380°C peak temperature thermal cycles were produced using Gleeble 3180 thermal mechanical simulator. 600°C constant speed tensile tests for simulated HAZ samples were carried out, and the precipitates of the simulated samples were analyzed by EDAX. The results show that the lowest Reduction of Area (RoA) was around 53% - 56% in 900-1150°C, which was about 15% lower than the maximum RoA in 800-1380°C. The reasons for decrease of HAZ high temperature plasticity were related to the precipitation of NbC. The fine NbC precipitated in the crystal and grain boundary enhanced strength of grain at high temperature, which resulted plastic deformation or slip at high temperature were mainly concentrated in the grain boundary, and high temperature plasticity of HAZ were decreased.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.881.19