The Hardness and Microstructure of The Modified 13Cr Steam Turbine Blade Steel in Tempered Conditions

Autor:	Efendi Mabruri, Hadi Perdana, Andinnie Juniarsih, Siska Prifiharni, Toni B. Romijarso, Bintang Adjiantoro
Rok vydání:	2016
Předmět:	Materials science Turbine blade Scanning electron microscope Metallurgy General Engineering 02 engineering and technology 021001 nanoscience & nanotechnology Microstructure 020501 mining & metallurgy law.invention Carbide 0205 materials engineering law Indentation Martensite Tempering 0210 nano-technology Steam turbine blade
Zdroj:	International Journal of Engineering and Technology. 8:2672-2675
ISSN:	0975-4024 2319-8613
DOI:	10.21817/ijet/2016/v8i6/160806224
Popis:	Martensitic stainless steels were usually used for turbine blade. Their properties can be improved in various ways, such as by heat treatment. This paper reports the influences of tempering temperature on hardness and microstructure of the modified 13Cr martensitic stainless steels. Samples were austenitized at 1050C and tempered at 300, 400, 500, 550, 600, 650, and 700oC. Hardness measurement was conducted by Rockwell C indentation and metallographic observation was conducted by scanning electron microscope (SEM). The results show that increasing tempering temperature until 500C can improve hardness. The microstructure formed consists of tempered martensite containing carbides M23C6. The presence of carbides can also increasing hardness. Increasing tempering temperaturefrom 500C to 650C can decrease Cr content of carbide. Internatioanl Journal of Engineering and Technology
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fb6b9c767f9a7d3ed1d4ba1a6f468261 https://doi.org/10.21817/ijet/2016/v8i6/160806224 Zobrazit plný text záznamu