Microstructure characteristics in the interface zone of gray cast iron solid state bonds

Other Title(s)

دراسة البنية الدقيقة للأسطح البينية لمنطقة ربط الحديد الزهر الرمادي

Joint Authors

Abd Allah, Awfa Abd al-Rasul
Radwan, Rasha Rahman

Source

Engineering and Technology Journal

Issue

Vol. 32, Issue 1B (31 Jan. 2014), pp.15-22, 8 p.

Publisher

University of Technology

Publication Date

2014-01-31

Country of Publication

Iraq

No. of Pages

8

Main Subjects

Engineering & Technology Sciences (Multidisciplinary)

Topics

Abstract AR

يتضمن البحث دراسة الربط الانتشاري لحديد الزهر الرمادي بالظروف الجوية و بوجود غاز خامل (أركون).

تحت ظروف جوية عادية تم الربط باستخدام درجات تسخين مختلفة 900, 850, 800, 750, 700°م, و باستخدام قوة كبس 2, 1 طن بأزمان مختلفة 60, 60, 15 دقيقة لإيجاد الظروف العملية المناسبة التي تؤثر على مقاومة الربط.

أجريت دراسات باستخدام قياسات الفحص المجهري و الصلادة الدقيقة (Micro hardness).

حيث اجريت فحوصات الصلادة على السطح الفاصل للوصلة.

حيث تبين أن الصلادة تزداد مع زيادة درجة الحرارة حيث أعلى قيمة للصلادة تم الحصول عليها عند درجة حرارة 850°م لفترة 60 دقيقة تحت ضغط 2 طن هي 310 (HV).

و تبين من اختبارات الفحص المجهري تكون أطوار كاربيدية (Carbides) و ترسيبها على سطح العينة و داخل

Abstract EN

In the present study, gray cast iron was diffusion bonded under air atmosphere and in inert environment (argon).

In air it was carried out at the temperatures of 700, 750, 800, 850, and 900 °C under UN pressing load of 1 and 2 ton for 15, 30 and 60min.

After diffusion bonding, experimental studies were adopted.

As a result, Vickers micro hardness testing was carried out to measure hardness distribution in gray cast iron joint.

The results observed from Vickers micro hardness test show that the hardness increases with increasing bonding temperature due to formation of hard phased iron carbides (Fe3C)the maximum value were observed at 850°C for 60 min holding time under 2 ton is 310 HV.

The microstructure results show the formation of carbide and the carbide precipitation increases with increasing the bonding temperature and time.

American Psychological Association (APA)

Abd Allah, Awfa Abd al-Rasul& Radwan, Rasha Rahman. 2014. Microstructure characteristics in the interface zone of gray cast iron solid state bonds. Engineering and Technology Journal،Vol. 32, no. 1B, pp.15-22.
https://search.emarefa.net/detail/BIM-370932

Modern Language Association (MLA)

Abd Allah, Awfa Abd al-Rasul& Radwan, Rasha Rahman. Microstructure characteristics in the interface zone of gray cast iron solid state bonds. Engineering and Technology Journal Vol. 32, no. 1B (2014), pp.15-22.
https://search.emarefa.net/detail/BIM-370932

American Medical Association (AMA)

Abd Allah, Awfa Abd al-Rasul& Radwan, Rasha Rahman. Microstructure characteristics in the interface zone of gray cast iron solid state bonds. Engineering and Technology Journal. 2014. Vol. 32, no. 1B, pp.15-22.
https://search.emarefa.net/detail/BIM-370932

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references : p. 22

Record ID

BIM-370932