| Title |
Evaluation of Glass Forming Ability in Ternary Mg-based BMG Systems |
| Authors |
박은수(Eun Soo Park); 김원태(Won Tae Kim); 김도향(Do Hyang Kim) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
Mg-based alloy; Bulk metallic glass; Glass forming ability; σ parameter |
| Abstract |
The interrelationship between new parameter σ and maximum diameter, D(max) (or critical cooling rate, Rc) is elaborated and discussed in comparison with four other glass forming ability (GFA) parameters, i.e. (1) super-cooled liquid region ΔTx (= Tx - Tg), (2) reduced glass transition temperature Trg (= Tg/Tl), (3) K parameter K (= [Tx -Tg]/[Tl -Tx]), and (4) gamma parameter y (= [Tx]/[Tl +Tg]) in Mg-based bulk metallic glass (BMG) systems. The new parameter σ, defined as, ΔT* × P`, has a solid correlation with Dmax and Rc in Mgbased BMG systems. The σ parameter has a much better interrelationship with GFA in Mg-based BMG systems than the parameters for GFA suggested so far. |