Ti6Al4V (Ti64) plate was fabricated from powders in vacuum at 10~(-2) Pa by selective laser melting (SLM) method with single mode fiber laser. Ti64 has a crystal orientation of alpha α + β type. In order to investigate the crystal orientation, a X-ray diffraction in continuous scanning mode and an energy dispersive X-ray spectroscopy were conducted. From the results, it can be found that at the powder, the peak of α (1011), α (0002), α (1010) and α(1012) crystal orientations is detected to be composed mainly of martensitic alpha. Diffraction peaks corresponding to β(110) were detected in vacuum SLM processed samples.
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