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. 10 Microhardness evolution in top, middle and bottom region of the welded joint for each repair