Excellent thermal stability and bulk glass forming ability of Fe-B-Nb-Y soft magnetic metallic glass
Creators
- 1. Tohoku Univ., Graduate School of Engineering, Sendai, Miyagi (Japan)
- 2. Tohoku Univ., Institute for Materials Research, Sendai, Miyagi (JP)
- 3. Tohoku Univ., Sendai, Miyagi (JP)
Description
Effects of Y addition on the glass forming ability (GFA) of a Fe-B-Nb marginal glass former, and annealing effects on glass/supercooled liquid phases as well as soft magnetic properties in the multicomponent Fe-B-Nb-Y alloy system were investigated. The origin of highly improved GFA in the multicomponent system is discussed with related to a characteristic exothermic phase transformation, chemical short range ordering, in the supercooled liquid region due to the positive heat of mixing between Nb-Y elements. The separating tendency between Nb and Y elements is considered to suppress precipitation of metastable Fe23B6 and α-Fe crystalline phases, thus to result in highly improving GFA and distinct high thermal stability against heat treatment of the alloy system. In addition, a glassy ring was fabricated by copper mold casting and magnetic properties were investigated before/after heat treatment (author)
Additional details
Publishing Information
- Journal Title
- Materials Transactions
- Journal Volume
- 49
- Journal Issue
- 3
- Journal Page Range
- p. 506-512
- ISSN
- 1345-9678
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 39080393
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ANNEALING; BORON ALLOYS; CALORIMETERS; COERCIVE FORCE; CRYSTAL-PHASE TRANSFORMATIONS; IRON BASE ALLOYS; MAGNETIC FIELDS; MAGNETIC PROPERTIES; MAGNETIZATION; METALLIC GLASSES; NIOBIUM ALLOYS; PRECIPITATION; STABILITY; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; YTTRIUM ADDITIONS; YTTRIUM ALLOYS
- Descriptors DEC
- ALLOYS; COHERENT SCATTERING; DIFFRACTION; ELECTRON MICROSCOPY; HEAT TREATMENTS; IRON ALLOYS; MEASURING INSTRUMENTS; MICROSCOPY; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; SCATTERING; SEPARATION PROCESSES; TRANSITION ELEMENT ALLOYS
Optional Information
- Notes
- 24 refs., 10 figs., 2 tabs.