Metallurgical Transactions A

, Volume 20, Issue 12, pp 2841-2845

First online:

The microstructure of rapidly solidified Ti-Fe melt-spun ribbons

  • I. LeviAffiliated withDepartment of Materials Engineering
  • , D. ShechtmanAffiliated withDepartment of Materials Engineering

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access


Ti-Fe binary alloys were rapidly solidified by the melt-spinning technique, and four compositions were examined: Ti-5 wt pct Fe, which is the critical composition for theβ to ω athermal transformation; Ti-10 wt pct Fe, which represents a hypoeutectoid composition; the eutectoid composition Ti-15 wt pct Fe; and Ti-20 wt pct Fe, as an example of a hypereutectoid alloy. The Ti-5 wt pct Fe rapidly solidified ribbons are composed of two different structures. The first consists of α′-martensite plates inβ matrix and the second, athermal ω particles inβ matrix. The Ti-10, 15, and 20 wt pct Fe alloys are also composed of two structures. These areβ grains and isothermal-like ω particles inβ matrix. A solidification model is suggested which explains the existence of two different microstructures at the same composition and the for-mation of two kinds of ω particles.