Density determination and simulation of Inconel 718 alloy at normal and metastable liquid states

• 来源期刊: 材料科学技术（英文版）
• 年，卷（期）: 2018,（3）
• 页码范围: 436-439
• 页数: 4页
• 语种: 英文

摘要

The density of liquid Incone1718 alloy was experimentally measured by electrostatic levitation technique,where the maximum undercooling of 100 K was realized for the commercial sample.The measured density of liquid Incone1718 alloy is 7.39 g cm-3 at the liquidus temperature of 1663 K which was confirmed by DSC experiment,with the linear temperature coefficient of-6.89 × 10-4 g cm-3 K-1.Correspondingly,four ternary Ni-Cr-Fe compositions were designed to simulate the density of liquid Inconel 718 alloy with 16000 atoms,from which the liquid structure is revealed by pair distribution function.The predicted result shows a remarkable enhancement with the decrease of temperature at the first neighbor distance.