Multi-functionalization of biomedical Zr-based alloys by combining additive manufacturing with plastic deformation

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H04140
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Structural/Functional materials
• Research Institution: Tohoku University
• Principal Investigator: Nomura Naoyuki 東北大学, 工学研究科, 准教授 (90332519)
• Co-Investigator(Renkei-kenkyūsha): KAWASAKI Akira 東北大学, 大学院工学研究科, 教授 (50177664) ; KIKUCHI Keiko 東北大学, 大学院工学研究科, 助教 (80361137)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 生体・医療・福祉材料 / MRI対応低磁性合金

Outline of Final Research Achievements

In this study, we tried to develop low magnetic Zr-based alloy suppressing MRI artifacts with low Young’s modulus by powder bed fusion and plastic deformation. The Zr alloy builds were fabricated with various building parameters. The amount of porosity in the builds depended on the energy density calculated using building parameters. Also, crystallographically oriented and randomly oriented build were obtained. The Young’s modulus of both the builds varied during cyclic tensile test. This behavior may be attributed to deformation-induced phase transformation. Therefore, we demonstrated the possibility of controling Young’s modulus for Zr alloy build by applying plastic deformation.

Free Research Field

材料工学