Surface relief of {alpha}{double_prime} martensite in a Ti-Mo alloy

Journal Article · Wed Mar 01 04:00:00 EST 2000 · Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science

DOI:https://doi.org/10.1007/s11661-000-0003-8· OSTI ID:20023136

Guo, H; Okuda, K; Enomoto, M

The surface relief of {alpha}{double_prime} martensite plates in a polycrystalline Ti-4.74 at. pct Mo alloy was studied by atomic force microscopy (AFM). The orientation of matrix grains was measured by electron backscatter diffraction (EBSD), and measured surface tilt angles were compared with calculation by the crystallographic theory of martensite transformation. The observed maximum tilt angle was close to the predicted value of 7.57 deg. The overall agreement between measured and calculated tilt angles was improved significantly by taking into account not only the inclination of habit plane to the specimen surface, but also the shear direction predicted from the theory. The tile angle may vary with the moving direction of the interface unless the habit plane is perpendicular to the specimen surface. However, this effect was small in this transformation.

• Research Organization: Ibaraki Univ., Hitachi (JP)
• OSTI ID: 20023136
• Journal Information: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, Journal Name: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science Journal Issue: 3 Vol. 31; ISSN MMTAEB; ISSN 1073-5623
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELECTRON DIFFRACTION
MARTENSITE
MICROSCOPY
MICROSTRUCTURE
MOLYBDENUM ALLOYS
SAMPLE PREPARATION
TITANIUM ALLOYS