On the new criterion to assess the glass-forming ability of metallic alloys

Identify the best glass forming ability criterion

“…This is physically meaningful as a larger g means better GFA, which is reflected by the smaller R c . From this viewpoint, u is not a suitable criterion as, with decreasing R c , u also decreases [10,21].…”

A Laser Deposition Strategy for the Efficient Identification of Glass-Forming Alloys

“…Well-known indicators of GFA, such as the reduced glass transition temperature, are not truly predictive a priori since they require formation of a glass in order to measure the glass transition temperature (T g ). [4][5][6][7] Furthermore, the predictive reliability of T gbased parameters is inconsistent across different alloy systems. [8,9] In contrast, recent structural models predict glass-forming alloys with limited success by identifying compositions that correspond to efficiently packed configurations of the atomic species.…”

Stress relaxation in metallic glasses of the system Pd – Cu – Ni – P prepared from melts with different glass-forming capacity

“…Direct measurement shear viscosity h = s/ & e (s is applied shear stress, & e is shear strain rate, arising as a result of action of this stress) on heating at a rate of 5 K/min showed that h close to T g comprises 2´10 11 and 2´10 10 Pa × sec for these MG respectively. In addition, in the case of MG Pd 40 Cu 30 Ni 10 P 20 the critical quenching rate R c » 0.1 K/sec [4], which is higher by more than an order of magnitude of R c » 0.005 -0.009 K/sec for MG Pd 43.2 Cu 28 Ni 8.8 P 20 [4,5]. It is assumed that alloys close in composition to Pd 43.2 Cu 28 Ni 8.8 P 20 develop the least R c among all metal systems [10].…”