Characterization of the variant selection occurring during the α→β→α phase transformations of a cold rolled titanium sheet

✍ Scribed by N. Gey; M. Humbert

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 649 KB
• Volume: 50
• Category: Article
• ISSN: 1359-6454
• DOI: 10.1016/s1359-6454(01)00351-2

✦ Synopsis

The fact that a cold rolling prior to an a→b→a transformation sequence causes the sharpening of the inherited a textures is analyzed. A restitution method is used to evaluate the intermediate b textures which allowed us to discuss the occurrence of variant selection in the b→a transformation. It appears that cold rolling prior to the a→b transformation makes the high temperature b texture sharper, with a density reinforcement around the {112}/{11-2}Ͻ111Ͼ components and further the variant selection occurring in the b→a phase transformation becomes stronger. The local texture analysis obtained by EBSD leads to the same results and is used to characterize the variant selection occurring in the b→a transformation.