Abstract
In order to clarify the potential of bulk amorphous alloys as a new class of structural materials with high dimensional stability, the thermal expansion and magnetic properties of amorphous Fe56Co7Ni7Zr10B20 doped with Cr have been investigated. Both the magnetic moment and the Curie point of amorphous Fe56Co7Ni7Zr10B20 were suppressed by Cr addition. The effect of Cr on the magnetic moment was well described by assuming a reduction of 4μB∕Cr atom. It was found that the Curie temperature can be controlled by Cr content over a wide range of 200K in the vicinity of room temperature. Although Invar characteristics were absent from the thermal expansion curves, amorphous Fe56Co7Ni7Zr10B20 doped with 1at.% Cr was found to exhibit a small coefficient of thermal expansion comparable to Kovar alloys, indicating that bulk amorphous alloys may have a potential for commercial low expansion materials.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
