In-situ electrical resistivity monitors the annealing process for Al-Mg-Mn aluminum alloy sheet

Kao, Yih Farn; Chen, Shi Rong; Ruan, Jrjeng

doi:10.1016/j.jallcom.2018.01.028

Cited by 4 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several characterization techniques are commonly used in the literature to quantify the kinetics of precipitate formation and its effect on mechanical properties. The investigation of precipitate formation and microstructure evolution is a complex process and normally requires using a combination of characterization techniques including differential scanning calorimetry (DSC) [ 22 , 23 ], atom probe [ 12 , 24 ], positron annihilation lifetime spectroscopy [ 17 , 18 ], electron backscatter diffraction [ 8 , 25 ], transmission electron microscopy [ 2 , 4 , 5 ], and electrical resistivity measurements [ 26 , 27 , 28 , 29 ]. While these techniques can reveal various aspects of the microstructure evolution processes and precipitate details, electrical resistivity measurement has many advantages compared to these techniques.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, electrical resistivity is very sensitive to any variations in solute atoms’ concentration that may occur in the alloy as a result of the precipitation reaction. In the case of AAAC wires, electrical resistivity is not only a “sensor” for precipitation kinetics but it also represents an important parameter that needs to be minimized for high-quality power conductors [ 15 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electrical Resistivity and Tensile Strength Relationship in Heat-Treated All Aluminum Alloy Wire Conductors

et al. 2021

View full text Add to dashboard Cite

Thermal processing of all aluminum alloy conductors (AAAC) is an important step that is performed to enhance the electrical and mechanical properties after the drawing process. In these 6xxx alloys, mechanical strength and electrical conductivity are normally two mutually exclusive properties. With the increased demand for high performance power conductors, it is important to understand and control microstructural evolution processes (e.g., recovery and the formation of nanoscale precipitates) in these alloys for better electrical and mechanical characteristics. In this study, heat treatment was performed on as-drawn 6201 AAAC wire conductors. The variations in tensile strength and electrical resistivity were quantitatively studied as a function of both the treatment temperature and holding time. Two wire diameters commonly used in the manufacturing of medium and high voltage power cables were used: 1.7 mm and 3.5 mm. From the obtained data, significant changes in the electrical resistivity and tensile strength were observed with increasing the treatment time. For both wire diameters, it was observed that the correlation between strength and resistivity can be described by a simple exponential relationship. This link could be useful in predicting mechanical strength by monitoring electrical resistivity variations during industrial heat treatment of AAAC wire conductors.

show abstract