ارزیابی ریزساختاری و خواص مغناطیسی آلیاژ آمورف پایه کبالت Co70B20Si5Fe4Mo1 تولید شده به‌روش مذاب‌‌ریسی و آلیاژسازی مکانیکی

نویسندگان

1 1- دانشکده مهندسی مواد و متالورژی، دانشگاه شهید باهنر کرمان

2 2- دانشکده مهندسی مکانیک، دانشگاه تهران

چکیده

آلیاژهای آمورف پایه کبالت جهت کاربردهای مختلفی شامل استفاده در صنایع الکترونیک، حسگرها و حافظه‌های مغناطیسی با توجه به خواص مغناطیسی ویژه خود شامل مغناطوتنگش نزدیک به صفر، نفوذپذیری مغناطیسی و مغناطش اشباع بالا مورد توجه بسیاری از محققان برای انجام تحقیقات بنیادی هستند. هدف از انجام این پژوهش ساخت و بررسی خواص مغناطیسی آلیاژ آمورف پایه کبالت با استفاده از فرایند ذوب‌ریسی مذاب و آلیاژسازی مکانیکی است. آلیاژ تولیدی به هر دو روش توسط میکروسکوپی الکترونی روبشی، دستگاه پراش سنج پرتو ایکس و دستگاه مغناطوسنج ارتعاشی مورد مطالعه قرار گرفت. نتایج نشان داد که ترکیب تولید شده به‌روش ذوب‌ریسی با دیسک مبرد دارای خواص نرم مغناطیسی مناسب‌تری می‌باشد.
 

کلیدواژه‌ها


عنوان مقاله [English]

Evaluation of Microstructure and Magnetic Properties of Cobalt-based Amorphous Alloy Co70B20Si5Fe4Mo1 Produced by Melt Spinning and Mechanical Alloying

نویسندگان [English]

  • M. Hosseinzadeh 1
  • M. Bozorgmehr 1
  • M. Askari 2
1 1- Department of Materials Engineering, Shahid Bahonar University, Kerman, Iran
2 2- Department of Mechanical Engineering, Tehran University, Tehran, Iran
چکیده [English]

Cobalt-based amorphous alloys attracted the attention of many researchers to carry out fundamental research for their application in electronics, sensors and magnetic memory due to their special magnetic properties including close to zero Magnetostriction, magnetic permeability and high saturation magnetization. The purpose of this study is the  formation and evaluation of microstructure and magnetic properties of cobalt-based amorphous alloy produced by melt spinning and mechanical alloying. The final compositions produced by both methods were studied by scanning electron microscopy, X-ray diffraction and vibrating magnetoresistance. The results showed that compound produced by chill block melt spinning has a better magnetic properties.

کلیدواژه‌ها [English]

  • Soft magnetic
  • Amorphous alloys
  • melt spinning
  • magnetic properties
  • mechanical alloying
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