ISSN:
1013-9826
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:
In present paper effect of alloying elements and strengthening particle on the impacttoughness were investigated. Load and energy in the impact tests were also discussed in detail forTi-2Al, Ti-2Sn,Ti-2Zr, Ti-1Mo and Ti/TiC. Impact tests were carried out at room temperature (293K)and low temperature (83K) using a 300J capacity impact machine. Ti-1Mo, Ti-2Zr,Ti-2Sn alloysexhibit high impact toughness even at low temperature, while Ti-2Al and Ti/TiC only have hightoughness at room temperature. At room temperature, general yielding occurred in all the materials,but it occurred only in Ti-1Mo, Ti-2Zr and Ti-2Sn at low temperature. It seemed that strengtheningtitanium couldn’t affect the elastic energy (Ei) effectively, but bring about more changes to Ep(propagation energy of crack) than to Ei (initiation energy of crack). As for the effect of alloyingelements on the impact toughness, it seems to be related to the comprehensive result of theconcentration and electronegative property of alloying elements. The interface between the TiCparticles and matrix resulted in low toughness, especially at cryogenic temperature
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.433.pdf
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