Characterization of Novel W Alloys Produced by HIP Articles uri icon

publication date

  • May 2009

start page

  • 613

end page

  • 617

volume

  • 386-388

international standard serial number (ISSN)

  • 0022-3115

electronic international standard serial number (EISSN)

  • 1873-4820

abstract

  • W and W alloys containing 0.5 wt% Y2O3, x wt% Ti and (x wt% Ti + 0.5 wt% Y2O3) have been prepared, x = 2 or 4. Elemental powders were blended or ball milled, canned, degassed and finally consolidated by a two-stage HIP process under a pressure of 195 MPa. It is found that Ti addition favours the densification attaining a fully dense material. XRD, SEM and EDX analyses of the material with Ti addition reveal the formation of a microstructure consisting of tungsten particles embedded in a W-Ti matrix. The microhardness of these materials increased noticeably with the titanium content.