Modelling and optimisation of the post-weld heat treatment of γ′ precipitation and hardness on Inconel X-750 using the response surface methodology
Journal article
Authors/Editors
Strategic Research Themes
No matching items found.
Publication Details
Author list: Peasura P., Poopat B.
Publisher: Inderscience
Publication year: 2016
Journal: International Journal of Materials and Product Technology (0268-1900)
Volume number: 52
Issue number: #
Start page: 238
End page: 259
Number of pages: 22
ISSN: 0268-1900
eISSN: 1741-5209
Languages: English-Great Britain (EN-GB)
View in Web of Science | View on publisher site | View citing articles in Web of Science
Abstract
This work describes a post-weld heat treatment (PWHT) for Inconel X-750. The following PWHT variables were examined: the solution temperature, PWHT temperature, and PWHT time. In this research, the application of the response surface methodology and Box-Behnken design in a mathematical model was investigated and optimised. The resulting materials were examined using optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and transmission electron microscopy (TEM) in the fusion zone (FZ). The experimental results reveal that using a full quadratic model with the proposed mathematical model of the γ′ precipitation size and γ′ hardness in the FZ, the obtained correlation of the hardness and γ′ precipitate size showed a reasonable linear relationship. Copyright © 2016 Inderscience Enterprises Ltd.
Keywords
Precipitates size
Contact Information