![Figure 1.21 Microhardness of FSW joints (a) S690 steel with HAZ softening; (b) DH36 steel without HAZ softening [125]](https://castman.co.kr/wp-content/uploads/image-2669.webp)
Figure 1.21 Microhardness of FSW joints (a) S690 steel with HAZ softening; (b) DH36 steel
without HAZ softening [125]
Figure 1.21 Microhardness of FSW joints (a) S690 steel with HAZ softening; (b) DH36 steel
without HAZ softening [125]
Figure 1.21 Microhardness of FSW joints (a) S690 steel with HAZ softening; (b) DH36 steel
without HAZ softening [125]
Figure 1.21 Microhardness of FSW joints (a) S690 steel with HAZ softening; (b) DH36 steel
without HAZ softening [125]