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Effect of B_4C on the Microstructure and Mechanical Properties of As-Cast TiB+TiC/TC4 Composites 被引量:4
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作者 Jiheng Wang Xianglong Guo +5 位作者 Lv Xiao Liqiang Wang Weijie Lu Baohui Li Zhongquan Li Di Zhang 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 2014年第2期205-210,共6页
Different additions of BaC were introduced into TC4 to alter the microstructure and mechanical properties. The morphologies of reinforcements are related to the solidification paths. The refinement of lamellar spacing... Different additions of BaC were introduced into TC4 to alter the microstructure and mechanical properties. The morphologies of reinforcements are related to the solidification paths. The refinement of lamellar spacing 2 is based on the precipitation pattern of [3-phases. Microhardness, compression elastic modulus (Ec), and elastic modulus of the matrix (Em) appear non-linear relationships with B4C additions. Due to the refinement of lamellar spacing with Hall-Petch-type relationships, and the solution strengthening of C on the α+ β matrix, the effect of reinforcements on the mechanical properties will be more efficient when the additions of B4C are no more than 0.19 wt%. When the additions of B4C are more than 0.19 wt%, the efficiency will decrease. 展开更多
关键词 Titanium matrix composites Lamellar spacing 2 Microstructure TIC TIB NANOINDENTATION
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