Sm-based Sm-Al-Ni ternary bulk metallic glasses
Sm-based Sm-Al-Ni ternary bulk metallic glasses
复制标题
DOI：
10.1557/jmr.2007.0086
复制
发表时间：
2007-03
影响因子：
2.7
通讯作者：
J. Wu;Q. Wang;J. Qiang;F. Chen;C. Dong;Y. M. Wang;C. Shek
中科院分区：
文献类型：
--
作者：
J. Wu;Q. Wang;J. Qiang;F. Chen;C. Dong;Y. M. Wang;C. Shek
采用e/a和团簇相关判据研究了Sm基Sm-Al-Ni非晶形成系统。采用真空吸铸法制备了Sm_54Al_23Ni_23、Sm_56Al_22Ni_22和Sm_58Al_21Ni_21三种块体非晶合金，它们都具有常数e/a = 1.5，并沿着三元成分图中的e/a -常数成分线。Sm_54Al_23Ni_23块体非晶合金具有最大的T _g，位于e/a常数线和Sm_7Ni_3-Al团簇线的交点处，在20 K/min的升温速率下，T _g = 548 K，T _g/ T _m = 0.634，T _g/ T _l = 0.615。Sm_7Ni_3团簇是由SmNi相衍生而来的带帽的三棱柱。
The Sm-based Sm–Al–Ni glass-forming system was investigated using our e/a - and cluster-related criteria. Three bulk metallic glasses (BMGs) Sm_54Al_23Ni_23, Sm_56Al_22Ni_22, and Sm_58Al_21Ni_21 were obtained by suction casting into rods with a diameter of 3 mm. All of them shared a constant e/a = 1.5 and fell along the e/a -constant composition line in the ternary composition chart. The Sm_54Al_23Ni_23 BMG exhibiting the largest T _rg was located at the intersection point of the e/a -constant line and the Sm_7Ni_3-Al cluster line, with thermodynamic parameters of T _g = 548 K at a heating rate of 20 K/min, T _g/ T _m = 0.634, and T _g/ T _l = 0.615. The Sm_7Ni_3 cluster was a capped trigonal prism derived from the SmNi phase.