Microstructure and properties of a laser fabricated burn-resistant Ti alloy

Mechanical properties of Ti-6Al-4V specimens produced by shaped metal deposition

“…Especially for complex shapes and small quantities, the fabrication of net shape components by additive layer manufacturing can reduce the costs by omitting extensive machining and production of scrap. Several techniques are considered, including direct laser fabrication [1][2][3][4][5][6][7][8][9][10], electron beam freeform fabrication [11][12][13] and tungsten inert gas welding [14][15][16]. The technique used in this paper is shaped metal deposition (SMD), which is a net shape tungsten inert gas welding process patented by Rolls-Royce.…”

Direct Laser Fabrication of Ti-25V-15Cr-2Al-0.2C (wt pct) Burn-Resistant Titanium Alloy

“…The overall microstructure of direct laser fabricated Ti-25V-15Cr-2Al-0.2C burn-resistant titanium alloy, using laser powers up to 516 W, has been characterized in detail by Wu et al [10,11] At low powers, equiaxed grains containing approximately 16 pct volume fraction of precipitates are found throughout most of the height of the samples with elongated equiaxed grains at the substrate/sample interface. Increases in laser power from 222 W to 516 W have little effect on the overall morphology of the Ti-25V-15Cr-2Al-0.2C alloy, but the precipitates become both longer and thicker.…”

Microstructure and Mechanical Properties of Stainless Steel Component Manufactured by Shaped Metal Deposition

“…Besides SMD, [1][2][3][4] other techniques such as direct laser fabrication [5][6][7][8][9][10][11][12][13][14] and electron beam freeform fabrication [15][16][17] are also studied for additive layer manufacturing. The subject of most of these investigations are Ti alloys; exceptions are the studies on the Ni base alloy IN718, 2) on the ultra high-strength low alloy steel 300M, 4) and on the aluminum alloy 2219.…”