2021
DOI: 10.1016/j.matchar.2021.111509
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Affecting mechanism of deep cryogenic treatment on nugget zone softening in dissimilar aluminum alloys friction stir welded joint

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Cited by 8 publications
(2 citation statements)
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“…(2) At the junction of the TMAZ and HAZ, there is significant variation in the metal grain structure, causing a decrease in the bonding strength between the grains in this area. Additionally, there is a sharp drop in hardness, resulting in non-uniformity and the formation of a soft-hard interface, making fractures more likely to occur in this region [28,29].…”
Section: Resultsmentioning
confidence: 99%
“…(2) At the junction of the TMAZ and HAZ, there is significant variation in the metal grain structure, causing a decrease in the bonding strength between the grains in this area. Additionally, there is a sharp drop in hardness, resulting in non-uniformity and the formation of a soft-hard interface, making fractures more likely to occur in this region [28,29].…”
Section: Resultsmentioning
confidence: 99%
“…Among the 2xxx series alloys, the aluminum alloy AA2219 is known for its excellent low temperature properties, enhanced strength to weight ratio and tolerance to stress corrosion cracking [5][6][7]. Therefore, it is widely used to make rocket fuel storage tanks [8][9][10]. However, traditional melt-based additive manufacturing (AM) methods involve the melting and solidification of materials, which can severely affect the mechanical properties of these alloys through the formation of coarse particles, cracks, and pores.…”
Section: Introductionmentioning
confidence: 99%