Microstructure tailoring in Electron Beam Powder Bed Fusion Additive Manufacturing and its potential consequences

• Electron Beam Powder Bed Fusion process for Alloy 718 was investigated, in the sense of microstructural evolution with varying process conditions. The existence of a geometric relationship between the melt front and the processing parameters was observed. By understanding and capitalizing on this relationship, it was possible to obtain columnar, equiaxed or bimodal microstructure.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)

Keyword

Alloy 718

Texture

Microstructure

Additive manufacturing

Powder bed fusion

Production Technology

Produktionsteknik

Manufacturing and materials engineering

Produktions- och materialteknik

Publication and Content Type

ref (subject category)

art (subject category)