袁文霞, H Ipser, 乔芝郁. Ni-Ga二元系的热力学计算[J]. 工程科学学报, 2002, 24(3): 383-386. DOI: 10.13374/j.issn1001-053x.2002.03.082
引用本文: 袁文霞, H Ipser, 乔芝郁. Ni-Ga二元系的热力学计算[J]. 工程科学学报, 2002, 24(3): 383-386. DOI: 10.13374/j.issn1001-053x.2002.03.082
shu
YUAN Wenxia, H Ipser, QIAO Zhiyu. Thermodynamic Assessment of the Ni-Ga System[J]. Chinese Journal of Engineering, 2002, 24(3): 383-386. DOI: 10.13374/j.issn1001-053x.2002.03.082
Citation: YUAN Wenxia, H Ipser, QIAO Zhiyu. Thermodynamic Assessment of the Ni-Ga System[J]. Chinese Journal of Engineering, 2002, 24(3): 383-386. DOI: 10.13374/j.issn1001-053x.2002.03.082
shu

Ni-Ga二元系的热力学计算

Thermodynamic Assessment of the Ni-Ga System

    摘要
  • 摘要: 采用CALPHAD技术评估了Ni-Ga二元系的相图和热力学性质.用双亚晶格模型描述2个有序相(L12-Ni3Ga和B2-NiGa)的热力学行为,并在优化过程中考虑了fcc-(Ni)和L12Ni3Ga相的有序-无序转变.溶液相(液相、fcc-(Ni)固溶体)的热力学模型采用Redlich-Kister方程,其余5个中间化合物被视为整比化合物.

     

    Abstract: The Ni-Ga system was assessed using the CALPHAD technique. The thermodynamic behav-iour of the ordered phases (Li2-Ni3Ga and H2-NiGa) were described by the sub-lattice model, and the order-disorder transformation of fcc-(Ni) and Li2-Ni3Ga phase was considered in the assessment. The solution phases (liquid, fcc-Ni) were modeled with the Redlich-Kister equation. The other 5 intermetallic compounds were treated as stoichiometric phases.

     

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