The Study of Microstructure and Mechanical Properties of Two High Strength Steels

Autor:	Zunzhao Li, Li Shihan, Zhao Wei, Wang Xiaolin
Rok vydání:	2020
Předmět:	Materials science Composite material Microstructure
Zdroj:	IOP Conference Series: Materials Science and Engineering. 730:012026
ISSN:	1757-899X 1757-8981
DOI:	10.1088/1757-899x/730/1/012026
Popis:	The microstructure and mechanical properties of two high strength steels with different carbon content were studied by means of metallographic microscope, scanning electron microscope, transmission electron microscope and mechanical testing machine. The results showed that the microstructure of the 0.2C (wt.%) steel and 0.4C (wt.%) steel was tempered sorbite, a large number of granular carbides dispersed on the ferritic matrix. The carbides contained Fe3C and M6C (Fe3Mo3C) phase. Compared with 0.2C steel, the content of the carbides of 0.4C steel was larger, while the particle size was smaller. The tensile and yield strength of 0.4C steel were higher, but the elongation was lower and the toughness was worse. In addition, the hardness values of the two materials were basically the same.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fc8fe31beaf80037082270d4679d724d https://doi.org/10.1088/1757-899x/730/1/012026 Zobrazit plný text záznamu