Formation mechanisms of precipitates in an Al–Cu–Li–Zr alloy and their effects on strength and electrical resistance of the alloy

Formation mechanism of precipitate T1 in AlCuLi alloys

“…Among these precipitates, the T 1 precipitates were considered to be mainly responsible for the strength of aged commercial Al-Cu-Li alloys [4]. Hence, extensive interest has been attracted by the investigation of T 1 phase [5][6][7][8][9][10][11][12][13][14][15][16][17].…”

The effect of creep aging on localized corrosion resistance of AA2060 alloy

“…T1 phase is the reported to be the major strengthening phase in aged Al–Cu–Li . T1 precipitates are possible to nucleate at dislocations, grain boundaries, vacancies or clusters of vacancies, and Al3Zr dispersoids .…”

Microstructure and mechanical properties of friction spot welding aluminium–lithium 2A97 alloy

“…It has been well known that stable T1 phase formed on (1 1 1) Al plane was considered as the main strengthening phase in Al-Li alloys [34,[39][40][41]. The nucleation sites of T1 phase was strongly dependent on the application of plastic deformation prior to ageing, involving abundant dislocations in the Al matrix [34,42,43], which resulted in the improvement of the UTS from 324.5 MPa to 528.6 MPa.…”