Microstructural Characterization of X70 Heat Treated Welded Pipeline Steel

EasyChair Preprint 6895

Abstract

This work, presents some heat treatments were used to improve the microstructure in different zones of the API X70 welded pipeline steel. In this study a shielded metal arc welding (SMAW) process has been realized.. Scanning electron microscopy and X-ray diffraction have been used as characterization techniques to observe the WM microstructures, in addition hardness are also measured. The results revealed that the isothermal heat treatment caused progressive recristallization reactions in the weld zone, and the hardness of weld joints decreased, were the main transformations after increasing the temperature of the heat treatment.

Keyphrases: Microstructure, heat treatment, low carbon steel, welding

@booklet{EasyChair:6895,
  author    = {Digheche Kelthoum and Khamouli Farida and Lekmine Farid and Chala Abdelouahed},
  title     = {Microstructural Characterization of X70 Heat Treated Welded Pipeline Steel},
  howpublished = {EasyChair Preprint 6895},
  year      = {EasyChair, 2021}}