نویسنده: کامران خداپرستی

Duplex stainless steels are a family of stainless steels that called duplex (or austenitic-ferritic) grades because their metallurgical structure consists of two phases, austenite and ferrite in roughly equal proportions. They are designed to provide better corrosion resistance, particularly chloride …

Last week, I upload here a file called ASTM Terminology Standards. After that, Mohammad Fouladi suggested to prepare a file about the general requirements of ASTM. In my opinion, it was an excellent suggestion because many experts think that all …

آیا تا بحال به این موضوع فکر کرده‌اید که جلای فلزی بعضی از این شیرآلات بهداشتی یا خودکارهای پلاستیکی از کجا می‌آید؟ به این خاطر می‌گویم که پلاستیک رسانا نیست تا بتوان روی آن فلز دیگری نشاند. فرایند آبکاری (Plating) …

This file presents some historical landmarks and timeline of discoveries related to the understanding and management of corrosion and also development in corrosion science. Developments in Corrosion Science

Suppose you are going to do reverse engineering, that is, for example, you have a piece of unknown steel and you want to manufacture the same. Perhaps the most important step in this route is to know its chemical analysis. …

یکم       در سطح بین‌المللی، به پیشنهاد یونسکو، روز ۵ اکتبر (۱۳ مهر) هر سال به عنوان روز جهانی معلم نامگذاری شده‌ است با این حال در بسیاری از کشورها از جمله ایران در روز متفاوتی جشن گرفته می‌شود. در کشورمان، …