| Issue |
MATEC Web Conf.
Volume 192, 2018
The 4th International Conference on Engineering, Applied Sciences and Technology (ICEAST 2018) “Exploring Innovative Solutions for Smart Society”
|
|
|---|---|---|
| Article Number | 01042 | |
| Number of page(s) | 4 | |
| Section | Track 1: Industrial Engineering, Materials and Manufacturing | |
| DOI | https://doi.org/10.1051/matecconf/201819201042 | |
| Published online | 14 August 2018 | |
In-service operating conditions affecting on weld HAZ hardness for API5L Gr.B pipe steel maintenance.
1
Production Engineering Department, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand
2
Mechanical and Industrial Engineering Department, Faculty of Engineering, Rajamangala University of Technology Krungthep Bangkok, Thailand
*
Corresponding author : rittichai.p@mail.rmutk.ac.th
This study aims to investigate the influences of in-service welding conditions on maximum HAZ hardness, namely heat input, pipe wall thickness, and medium flow rate. The research consists of two parts; computationally thermal analysis and actual welding experiments. In conclusion, it suggested that increasing heat input resulted in decreasing maximum HAZ hardness, as well as, the range of run pipe thickness in the experiment was insignificantly influenced on HAZ hardness. Additionally, the higher flow rate induced more HAZ hardness with a certain flow rate level. HAZ hardness between the sleeve plate and the run pipe was insignificantly different. Nevertheless, it indicated that HAZ hardness prediction via computational analysis was more conservative than experiments.
© The Authors, published by EDP Sciences, 2018
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