Artykuł

Vol: 36 , Nr: , Art.: 6
Tytuł / Title:
Determination of emissivity coefficient of heat-resistant super alloys and cemented carbide
Autorzy / Authors:
KIERUJ Piotr
PRZESTACKI Damian
CHWALCZUK Tadeusz
Institute of Machine Technology, Poznan University of Technology
Słowa kluczowe / key words:
nickel alloys, emissivity coefficient, tungsten carbides
Streszczenie / Summary:

This paper presents the analysis of emissivity engineering materials according to temperature. Experiment is concerned on difficult to machine materials, which may be turned with laser assisting. Cylindrical samples made of nickel-based alloys Inconel 625, Inconel 718, Waspaloy and tungsten-carbides based on cobalt matrix were analyzed. The samples’ temperature in contact method was compared to the temperature measured by non-contact pyrometers. Based on this relative, the value of the emissivity coefficient was adjusted to the right indication on pyrometers.