Effect of thermo-mechanical processing on texture evolution in austenitic stainless steel 316L

• Published in: Materials characterization 2014-12, Vol.98, p.10-17
• Main Authors: Nezakat, Majid, Akhiani, Hamed, Hoseini, Majid, Szpunar, Jerzy
• Format: Article
• Language: English
• Subjects: Annealing texture; Austenitic stainless steel 316L; Austenitic stainless steels; Brasses; Cross rolling; Cross-disciplinary physics: materials science; rheology; Deformation; Deformation texture; Deformation-induced ά-martensite; Exact sciences and technology; Heat resistant steels; Materials science; Phase diagrams and microstructures developed by solidification and solid-solid phase transformations; Physics; Recrystallization; Reduction; Solidification; Surface layer; Texture; Thermo-mechanical processing
• ISSN: 1044-5803; 1873-4189
• DOI: 10.1016/j.matchar.2014.10.006

In this study we implemented two rolling modes to investigate the strain path effect on deformation and annealing textures of austenitic stainless steel 316L. We applied unidirectional rolling and cross-rolling to achieve up to a 90% reduction in thickness. Results show that for deformed austenite, Brass, Goss and γ-fibre were the main texture components in the unidirectional rolled sample, while Brass was the dominant texture in the cross-rolled sample. In addition, rotated Copper and rotated Cube were the main textures of martensite after 90% reduction for unidirectional rolled and cross-rolled samples, respectively. Results also show that recrystallization texture has a direct correlation to that of deformed austenite since transformed martensite reversion was athermal. After recrystallization, Brass and a combination of Brass and Goss were the dominant textures for cross-rolled and unidirectional rolled samples, respectively. •We used two rolling modes for thermo-mechanical processing to induce different textures.•Deformation textures of austenite and martensite are affected by rolling mode.•We observed undeformed structure after 90% of cross-rolling deformation.•Austenite deformation texture has a great impact on final annealing texture.•Martensite reversion was athermal during annealing.