We dedicate this work to Wolfgang Pompe, a very good friend and a good friend of the Materials Faculty at UCSB where he and his wife, Gisela, shared their lives and fellowship. Three different zirconia–alumina laminates, AZ50, AZ80, and AZ95, were fabricated via tape-casting thick Zr(3Y)O2 layers, dip-coating the zirconia tapes in a slurry containing a mixture of zirconia and alumina, stacking ...

The influence of Mg17Al12 phase morphology on the mechanical properties AZ80 magnesium alloy subjected to aging was studied. Scanning electron microscopy, X-ray diffraction analysis and hardness indentation were used reveal microstructural evolution alloys during aging. results show that mostly formed at grain boundaries with discontinuous lamellas 150 °C. In contrast, continuous short rod sphe...

آلیاژهای منیزیم معمولاً دارای عدم تقارن تسلیم در حالت کشش و فشار هستند که این عامل ناشی از سازوکارهای مختلف تغییر شکل پلاستیک فعال تحت بارگذاری‌های کششی فشاری است. مقاله بر روی شبیه‌سازی المان حجمی نماینده‌ی سه‌بعدی آلیاژ اکسترود شده تمرکز دارد تا با کمک روابط کریستال پلاستیسیته تأثیر شدت بافت پایه ـ را بررسی کند. پلاستیسته مبتنی‌بر لغزش به‌صورت یک زیربرنامه نرم‌افزار آباکوس (U‌M‌A‌T) برای آزمون...

Discontinuous precipitation (DP) is a commonly observed mechanism by which solid solutions decompose. It results from layers of precipitate and solute depleted matrix forming across moving boundary. The morphology the discontinuous regions can be highly complex, way dislocations or twins navigate such structure during deformation poorly understood. Only through 3-dimensional (3D) analysis true ...

The crystallography and kinetics of Al 11 Mn 4 formation on 8 5 have been studied in magnesium alloys AZ80 / AZ91 AZ31. During solidification, was promoted by low cooling rates where triclinic nucleated rhombohedral particles with one multiple related orientation relationships (ORs) their variants. grew as (010) plates that were commonly twinned the interrelationships amongst twins, twins -Al O...

The effects of ultrasonic power, treatment time and holding on AZ80 magnesium melt purification by field were studied. results indicate that can accelerate the separation inclusions attain purification. When alloy is treated with power 80 W at 650 °C for 60 s 100 s, best achieved. Moreover, effect degassing AZ91 was also investigated. 150 90 hydrogen content efficiency are 9.6 cm3/100 g 50.5%, ...