Kim, Daeho Jung, Woosang Lee, Sanghyun 2024-01-19T18:31:09Z 2024-01-19T18:31:09Z 2022-01-25 2020-01 1475-7435 https://pubs.kist.re.kr/handle/201004/119118 Superalloys, which are known for their high temperature resistance, are widely used in aerospace applications, gas turbines, turbine blades for jet engines and automotive applications. The Inconel alloy 740 is a nickel-based, age-hardened superalloy, with good heat resistance and thermal stability. The thermophysical properties of the Inconel alloy 740 of varied material compositions were assessed by measurement of the thermal diffusivity, specific heat capacity, thermal conductivity, and coefficient of thermal expansion (CTE). Inconel alloy 740 was modified with titanium and aluminium. A typical IN740 alloy, 'IN1', had Ti (2.8 wt.%) and Al (1.4 wt.%) added, 'IN2' was modified using Ti (3.6 wt.%) and 'IN3' was modified with Al (1.8 wt.%). The thermal diffusivity and the specific heat capacity were measured using laser flash and differential scanning calorimetry, respectively. The thermal conductivity was calculated according to the results of the thermal diffusivity and specific heat capacity in the temperature range from room temperature to 800 degrees C. The CTE was evaluated by push-rod dilatometer method. In this study, we present the thermophysical properties of the Inconel alloy 740, of which the base material was modified with titanium and aluminium. English Inderscience Publishers Thermophysical properties of Inconel alloy 740 modified with titanium and aluminium Article 10.1504/IJNT.2019.104472 1 International Journal of Nanotechnology, v.16, no.4-5, pp.273 - 280 International Journal of Nanotechnology 16 4-5 273 280 N scie scopus 000507297700009 2-s2.0-85078012763 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article MICROSTRUCTURE SUPERALLOY BEHAVIOR Inconel alloy 740 thermal diffusivity specific heat capacity thermal conductivity CTE coefficient of thermal expansion DSC differential scanning calorimeter LFA laser flash apparatus