Browsing Waterloo Research by Author "Wells, Mary"
Now showing items 1-7 of 7
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Bimodal grain microstructure development during hot compression of a cast-homogenized Mg-Zn-Zr alloy
Hadadzadeh, Amir; Mokdad, Fatma; Shalchi Amirkhiz, Babak; Wells, Mary; Williams, Bruce W.; Chen, Daolun L. (Elsevier, 2018-05-02)Hot deformation of a cast-homogenized ZK60 alloy was studied by compression at a temperature of 450 °C and a strain rate of 0.001 s−1 to investigate microstructural evolution. The deformed microstructure was characterized ... -
Effect of alloy composition on hot deformation behavior of some Al-Mg-Si alloys
ODOH, DANIEL OGHENEKEWHE; Mahmoodkhani, Yahya; Wells, Mary (Elsevier, 2018-03-01)The hot flow stress behavior of three Al-Mg-Si alloys was determined by performing hot deformation compression tests on a Gleeble 3500 thermomechanical simulator over the temperature range 400 °C–550 °C and at strain rates ... -
Low-cycle fatigue characterization and texture induced ratcheting behaviour of forged AZ80 Mg alloys
Gryguc, Andrew; Behravesh, Seyed Behzad; Shaha, Sugrib K.; Jahed, Hamid; Wells, Mary; Williams, Bruce W.; Su, Xuming (Elsevier, 2018-11-01)Stress-controlled uniaxial “push-pull” fatigue testing was conducted on as-received (cast and extruded) and closed-die cast-forged and extruded-forged AZ80 Mg alloy. The as-cast material possessed random texture and somewhat ... -
Mathematical modeling of thermo-mechanical behavior of strip during twin roll casting of an AZ31 magnesium alloy
Hadadzadeh, Amir; Wells, Mary (Elsevier, 2013-06-01)The effect of set-back distance on the thermo-mechanical behavior of the strip during twin roll casting (TRC) of an AZ31 magnesium alloy was modeled using finite element method (FEM). Model validation was done by comparing ... -
Monotonic and cyclic behaviour of cast and cast-forged AZ80 Mg
Gryguc, Andrew; Shaha, Sugrib K.; Behravesh, Seyed Behzad; Jahed, Hamid; Wells, Mary; Williams, Bruce W.; Su, X. (Elsevier, 2017-11)Tensile and strain-controlled fatigue tests were performed to investigate the influence of forging on the performance of cast AZ80 magnesium alloy. The obtained microstructural analysis showed that the as-cast AZ80 magnesium ... -
Process parameters for hot stamping of AA7075 and D-7xxx to achieve high performance aged products
Omer, Kaab; Abolhasani, Atekeh; Kim, Samuel; Nikdejad, Tirdad; Butcher, Clifford; Wells, Mary; Esmaeili, Shahrzad; Worswick, Michael (Elsevier, 2018-07)This work examines the necessary process parameters for die quenching (DQ) during hot stamping and subsequent age hardening and paint bake cycle (PBC) response for two alloys: AA7075 and a developmental 7xxx alloy (referred ... -
Sagging resistance of warm formed aluminum brazing sheet
Benoit, Michael J.; Kaur, R.; Wells, Mary; Jin, H.; Amirkhiz, B. Shalchi; Winkler, Sooky (Elsevier, 2018-04-01)Interrupted tensile tests, performed between room temperature (RT) and 250°C, were used to simulate warm forming of an AA3003/AA4045 brazing sheet. Brazing performance was predicted from sagging distance measurements after ...