Mechanical and Metallurgical Characterization of HSLA X70 Welded Pipeline Steel Subjected to Successive Repairs

Bouzid Maamache, Mabrouk Bouabdallah, Abdelhalim Brahimi, Youcef Yahmi, Billel Cheniti, Brahim Mehdi

Fig. 7 Grain size in HAZ as a function of the repair number