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      Microstructure and mechanical properties of TiAl alloys produced by rapid heating and open die forging of blended elemental powder compacts

      Su, Yongjun; Zhang, Deliang; Kong, Fantao; Chen, Yuyong
      DOI
       10.1016/j.msea.2012.11.012
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      Su, Y., Zhang, D., Kong, F., & Chen, Y. (2013). Microstructure and mechanical properties of TiAl alloys produced by rapid heating and open die forging of blended elemental powder compacts. Materials Science and Engineering: A, 563, 46-52.
      Permanent Research Commons link: https://hdl.handle.net/10289/7356
      Abstract
      Ti-43Al-5V-4Nb (at%) intermetallic compounds were fabricated by a rapid heating and open die forging method using blended elemental powders. The process route consisted of powder blending, compacting, rapid heating, open die forging and heat treatment. During heating there is porosity in the blended and warm compacted powder billets which still persists after the first forging. In order to remove this difficulty a two stage forging process was used. A fully lamellar structure was seen in the TiAl alloy after heat treatment. Overall, the TiAl alloy showed moderately good mechanical properties at room temperature and good mechanical properties, with reasonable strength and good ductility at high temperatures.
      Date
      2013
      Type
      Journal Article
      Publisher
      Elsevier
      Collections
      • Science and Engineering Papers [2945]
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