Calculation of Thermophysical Properties of Ni-based Superalloys

Autor:	Y. M. Youssef, Kenneth C. Mills, Yuchu Su, Zushu Li
Rok vydání:	2006
Předmět:	Chemistry Mechanical Engineering Metals and Alloys Thermodynamics Solidus Liquidus Thermal diffusivity Heat capacity Thermal expansion Superalloy Thermal conductivity Mechanics of Materials Materials Chemistry Emissivity
Zdroj:	ISIJ International. 46:623-632
ISSN:	1347-5460 0915-1559
DOI:	10.2355/isijinternational.46.623
Popis:	Reliable thermophysical data of Ni-based superalloys are needed for the mathematical modelling of solidification in casting applications. This paper derives equations and procedures to calculate the following properties of these alloys from chemical composition of the alloy: the γ′ phase content, liquidus and solidus temperatures, density and thermal expansion coefficient, heat capacity and enthalpy, electrical resistivity, thermal diffusivity and conductivity, viscosity, surface tension and contact angle. Estimates are also for the diffusion coefficient and emissivity. This work has revealed an urgent need for reliable property measurements on liquid Ni-based alloys for the following: heat capacity, electrical resistivity, thermal diffusivity and conductivity, emissivity and diffusion coefficients.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::92c2b6863e9192c9d5c22aef63056d60 https://doi.org/10.2355/isijinternational.46.623 Zobrazit plný text záznamu