In situ EBSP investigation of plastic deformation behavior in single crystalline Ti alloys

2016 Fiscal Year Final Research Report

• Project/Area Number: 26870194
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Structural/Functional materials; Material processing/Microstructural control engineering
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Tahara Masaki 東京工業大学, 科学技術創成研究院, 助教 (80610146)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: チタン合金 / 形状記憶合金 / 双晶

Outline of Final Research Achievements

The objective of this study was to clarify the plastic deformation behavior of beta-Ti alloys which have been developed as a new Ni-free shape memory alloy. To systematically investigate the plastic deformation behavior of martensite phase, the single crystalline martensite was fabricated in this study. Four operative plastic deformation modes were observed: (1) {130} twin, (2) {103} twin, (3) <110> slip and (4) <101> slip. These plastic deformation modes in martensite phase corresponds to the {332} twin and <111> slip in the parent beta phase.

Free Research Field

金属組織学