TY - GEN
T1 - Properties for AA7050 deposits produced by the cold spray process
AU - Eden, Timothy J.
AU - Judd, Kiran G.
AU - Girrior, Raymond M.
N1 - Publisher Copyright:
© 2019 Soc. for the Advancement of Material and Process Engineering. All rights reserved.
PY - 2019
Y1 - 2019
N2 - The presentation describes the microstructure, adhesion and shear test results for AA7050 deposited AA7050-T7451 substrates via the Cold Spray process using helium and nitrogen as the main process gas. A batch of gas atomized AA7050 powder sized to -270 mesh (<53 µm) was sieved to +625 (>20µm) to remove as many of the smaller particles as possible. A portion of the powder was thermally treated using a propriety process. Particle size distribution measurements were made for the powders in the as-received, sieved and sieve and thermally treated powders. Scanning electron images of the powder before and after the thermal treatment were taken. The AA7050 powder was deposited on AA7050-T7451 substrates in the as-received and as-received and thermally treated conditions. Microstructure analysis showed deformation characteristics of the powders. Deposits of all the powder/main gas combinations showed very good adhesion. The sear strength for the AA7050 deposited using helium was much higher than the shear strength of the samples produced using nitrogen. Adhesion and shear strengths produced using a hand held spray nozzle and a robot controlled spray nozzle were similar.
AB - The presentation describes the microstructure, adhesion and shear test results for AA7050 deposited AA7050-T7451 substrates via the Cold Spray process using helium and nitrogen as the main process gas. A batch of gas atomized AA7050 powder sized to -270 mesh (<53 µm) was sieved to +625 (>20µm) to remove as many of the smaller particles as possible. A portion of the powder was thermally treated using a propriety process. Particle size distribution measurements were made for the powders in the as-received, sieved and sieve and thermally treated powders. Scanning electron images of the powder before and after the thermal treatment were taken. The AA7050 powder was deposited on AA7050-T7451 substrates in the as-received and as-received and thermally treated conditions. Microstructure analysis showed deformation characteristics of the powders. Deposits of all the powder/main gas combinations showed very good adhesion. The sear strength for the AA7050 deposited using helium was much higher than the shear strength of the samples produced using nitrogen. Adhesion and shear strengths produced using a hand held spray nozzle and a robot controlled spray nozzle were similar.
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U2 - 10.33599/nasampe/s.19.1561
DO - 10.33599/nasampe/s.19.1561
M3 - Conference contribution
AN - SCOPUS:85068763007
T3 - International SAMPE Technical Conference
BT - SAMPE Conference and Exhibition
A2 - Ahlstrom, Kevin
A2 - Anderson, Jacob Preston
A2 - Beckwith, Scott
A2 - Becnel, Andrew Craig
A2 - Biermann, Paul Joseph
A2 - Buchholz, Matt
A2 - Cates, Elizabeth
A2 - Gardner, Brian
A2 - Harris, Jim
A2 - Knight, Michael J.
A2 - Reyes-Villanueva, German
A2 - Scarborough, Stephen E.
A2 - Sears, Phil
A2 - Thomas, James
A2 - Thostenson, Erik T.
PB - Soc. for the Advancement of Material and Process Engineering
T2 - SAMPE 2019 Conference and Exhibition
Y2 - 20 May 2019 through 23 May 2019
ER -