Microstructure and hardness of Bi-modified magnesium AZ31 alloys subjected to severe plastic deformation. J Min & Metal B Metallurgy [Internet]. 2025 Nov. 24 [cited 2026 Jun. 11];61(2):211-9. Available from: https://test.aseestant.ceon.rs/index.php/jmm/article/view/58924