ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
M3:2 high speed steels with and without carbon addition were prepared by using powdermetallurgy at sintering temperature between 1210 and 1280 °C. Densification, microstructure andmechanical properties of M3:2 high speed steels were investigated. Experimental results show thatwith 0.4wt% carbon addition, full density high speed steels were obtained at temperatures in therange 1240-1260 °C which is 40 °C lower than that of the undoped counterparts, leading to a sinteringwindow expanded by 10 to 20 °C. By the addition of 0.4wt% carbon, the sintered steels showattractive combinations of bend strength and hardness over those of M3:2 steels without carbonaddition. The results reveal that the addition of carbon will not only lower the sintering temperatureand oxygen content, but also improve the mechanical properties of the sintered steels
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.29-30.153.pdf
Permalink