Creep Behavior Evaluation of Hastelloy X Welded Joint

1981 ◽  
Vol 55 (2) ◽  
pp. 479-486 ◽  
Author(s):  
Kunihiko Satoh ◽  
Masao Toyoda ◽  
Shigetomo Matsui ◽  
Eisuke Mori ◽  
Shigeki Shimizu ◽  
...  
Keyword(s):  
Creep Behavior ◽  
Welded Joint ◽  
Hastelloy X

Special zone in multi-layer and multi-pass welded metal and its role in the creep behavior of 9Cr 1Mo welded joint

2016 ◽  
Vol 108 ◽  
pp. 195-206 ◽  
Author(s):  
Wen Liu ◽  
Fenggui Lu ◽  
Yuanhang Wei ◽  
Yuming Ding ◽  
Peng Wang ◽  
...  
Keyword(s):  
Creep Behavior ◽  
Welded Joint ◽  
Special Zone

Investigation on creep behavior of welded joint of advanced 9%Cr steels

2014 ◽  
Vol 30 (2) ◽  
pp. 197-205 ◽  
Author(s):  
Donghai Meng ◽  
Fenggui Lu ◽  
Haichao Cui ◽  
Yuming Ding ◽  
Xinhua Tang ◽  
...  
Keyword(s):  
Creep Behavior ◽  
Welded Joint ◽  
Cr Steels ◽  
Image Position

Abstract

Analysis of the Creep Behavior of P92 Steel Welded Joint

2011 ◽  
Vol 20 (8) ◽  
pp. 1474-1480 ◽  
Author(s):  
Junchao An ◽  
Hongyang Jing ◽  
Guangchun Xiao ◽  
Lei Zhao ◽  
Lianyong Xu
Keyword(s):  
Creep Behavior ◽  
Welded Joint ◽  
P92 Steel

Microstructural and mechanical characterization of the effect of the welding process on creep behavior of welded joint and base metal specimens of Inconel 600

MRS Advances ◽  
2020 ◽  
Vol 5 (59-60) ◽  
pp. 3003-3014
Author(s):  
Lourdes Y. Herrera-Chávez ◽  
Alberto Ruiz ◽  
Víctor H. López-Morelos ◽  
Carlos Rubio-González ◽  
Martín R. Barajas-Álvarez ◽  
...  
Keyword(s):  
Base Metal ◽  
Creep Behavior ◽  
Heat Affected Zone ◽  
Structural Integrity ◽  
Welded Joint ◽  
Welding Process ◽  
Creep Tests ◽  
Inconel 600 ◽  
Two Temperatures

AbstractIn this study, plates of Inconel 600 superalloy were gas metal arc welded to investigate the effects of the welding process on the creep behavior of the welded samples and compare it to the creep behavior of samples in the as-received condition. Creep tests were performed at two temperatures (600 and 650 °C) with different stress levels. During the welding process, three distinctive microstructural zones are generated, i.e. welded material, heat affected zone, and base metal that may affect the properties of the welded joint. Microstructural, elemental analysis of samples was conducted using Scanning Electron Microscopy (SEM) and Energy-dispersive X-ray spectroscopy (EDS). The experimental results show that creep rupture preferentially occurs in the heat-affected zone of the base metal at 4 mm from the fusion line and that the creep behavior of welded samples is different from that of the base metal. These results can be used in the design of structural components to assure their structural integrity.

Creep behavior and microstructure evaluation of welded joint in dissimilar modified 9Cr–1Mo steels

2015 ◽  
Vol 644 ◽  
pp. 337-346 ◽  
Author(s):  
Wen Liu ◽  
Xia Liu ◽  
Fenggui Lu ◽  
Xinhua Tang ◽  
Haichao Cui ◽  
...  
Keyword(s):  
Creep Behavior ◽  
Welded Joint ◽  
Microstructure Evaluation

Modeling the Creep of Hastelloy X Using the Miller and Walker Unified Viscoplastic Constitutive Models

2015 ◽  
Author(s):  
Luis A. Varela J. ◽  
Calvin M. Stewart ◽  
Ali P. Gordon
Keyword(s):  
Experimental Data ◽  
Creep Behavior ◽  
Simulated Annealing Algorithm ◽  
Extreme Environments ◽  
Constitutive Models ◽  
Suitable Model ◽  
Inelastic Behavior ◽  
Hastelloy X ◽  
Material Constants ◽  
Viscoplastic Models

Hastelloy X is widely used in the pressure vessel and piping (PVP) industries, specifically in nuclear and chemical reactors, pipes and valves applications. Hastelloy X is favored for its resistance to extreme environments, although it exhibits a rate-dependent mechanical behavior. Numerous unified viscoplastic models proposed in literature claim to have the ability to describe the inelastic behavior of superalloys subjected to a variety of boundary conditions; typically limited experimental data is used to validate their performance. In this paper, two unified viscoplastic models (Miller and Walker) were experimentally validated for Hastelloy X creep behavior. Both constitutive models are coded into ANSYS Mechanical as user programmable features (UPF). Creep behavior is simulated at a broad range of stress levels. The results are compared to an exhaustive database of experimental data to fully validate the capabilities and performance of these models. Material constants are calculated using the recently developed Material Constant Heuristic Optimizer (MACHO) software. This software uses the simulated annealing algorithm to determine the optimal material constants by using an extensive database of experimental data. A qualitative and quantitative discussion is presented to determine the most suitable model for Hastelloy X PVP components.

Creep Behavior of a Bimetallic Welded Joint in a Nuclear Piping System

2003 ◽  
Author(s):  
Y. P. Yang ◽  
F. W. Brust ◽  
J. Oh
Keyword(s):  
Residual Stress ◽  
Creep Behavior ◽  
Welded Joint ◽  
Creep Damage ◽  
Steel Pipe ◽  
304 Stainless Steel ◽  
Creep Model ◽  
Piping System ◽  
Damage Development ◽  
Modeling Tools

The information of the creep behavior of a thick welded joint is very important to secure the safety of high temperature service devices. The creep damage development and behavior are very complex; hence it is time consuming to practice the experiment and theoretical analyses. In this paper a simple accurate model was developed to analyze the creep behavior of weld metal and heat-affected zone on a thick bimetallic welded pipe. The pipe was made by welding an A508-class-2 carbon steel pipe to a 304 stainless steel pipe with a shielded metal arcwelding process using INCONEL 182 electrodes. Virtual fabrication technology weld modeling tools (VFT™) developed jointly by Battelle and Caterpillar was used to obtain welding-induced residual stress. The weld residual stress was read into the creep model as initial stress condition for creep analysis. A temperature 1000°F was applied on the bimetallic weld model with inside pressure and axial loading. The simulation results indicated that creep strains were not uniform through the weld joint due to weld residual stresses, materials creep behavior and geometry changes. Some stress and strain concentrations were found on the A508 steel near buttering region, which results in axial cracks.

Holding time influence on creep behavior of transient liquid phase bonded joints of Hastelloy X

2020 ◽  
Vol 772 ◽  
pp. 138694 ◽  
Author(s):  
A. Malekan ◽  
M. Farvizi ◽  
S.E. Mirsalehi ◽  
N. Saito ◽  
K. Nakashima
Keyword(s):  
Liquid Phase ◽  
Creep Behavior ◽  
Transient Liquid Phase ◽  
Holding Time ◽  
Bonded Joints ◽  
Hastelloy X
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