Effect of heat input on the microstructure of the friction stir weldedTRIP steel joints

المؤلفون المشاركون

Muqaddim, H. G. Tihrani
Jafarian, Hamid Rida

المصدر

ZANCO Journal of Pure and Applied Sciences

الناشر

جامعة صلاح الدين قسم النشر العلمي

تاريخ النشر

2019-06-30

دولة النشر

العراق

عدد الصفحات

5

التخصصات الرئيسية

الفيزياء

الموضوعات

• الفولاذ
• الحرارة
• الاحتكاك
• اللحام
• البنية المجهرية

الملخص الإنجليزي

The high-Ni TRIP steel plates were friction stir welded at rotational and traverse speeds of 600 rpm-100 mm-min- 1 and 950 rpm-50 mm-min-1, respectively for high and low heat input conditions.

The optical microscopy, X-Ray diffraction (XRD), orientation image microscopy (OIM), and tensile test were employed for characterization of the joints.

The results showed that friction stir welding replaced the large grains of the base metal with fine and equiaxed grains by continuous dynamic recrystallization (CDRX).

In addition, friction stir welding lead to stabilization of the austenite.

The lower heat input condition caused finer grain sizes.

Using lower heat inputs resulted in more retained austenite by means of both work hardening and finer grain size mechanisms

نوع البيانات

أوراق مؤتمرات

رقم السجل

BIM-894791

• APA
• MLA
• AMA