معلومات البحث الكاملة في مستودع بيانات الجامعة

عنوان البحث(Papers / Research Title)


Investigation the Effect of Titanium on Adhesive Wear and Hardness of NiAl-Y2O3 Composite Material


الناشر \ المحرر \ الكاتب (Author / Editor / Publisher)

 
علي هوبي حليم الخزرجي

Citation Information


علي,هوبي,حليم,الخزرجي ,Investigation the Effect of Titanium on Adhesive Wear and Hardness of NiAl-Y2O3 Composite Material , Time 10/10/2021 9:44:28 PM : كلية هندسة المواد

وصف الابستركت (Abstract)


The current research topic is mainly focused on the wear characterization of particulate reinforced NiAl-Y2O3 composite and investigates the effect of Ti with various weight percentages (2, 2.5, and 3 wt. %) on the microstructure, hardness, and wear performance of NiAl-Y2O3 composite.

الوصف الكامل (Full Abstract)

In the present study, the nickel aluminide NiAl-based composite, reinforced with yttrium oxide Y2O3 with the addition of titanium, was prepared by sintering at 1350 °C for one and a half hours under argon gas atmosphere. Brinell hardness test was carried out according to (ASTM E140 – 12b). Titanium addition leads to an increase in hardness of (NiAl-Y2O3) composite. The increase in hardness is mainly due to increased NiAl-Y2O3 mechanical resistance when titanium is added by the solid-state solution strengthening, as well as by the high density (5.7514 g/cm3 ) and very low porosity (1.93%) of the final samples. The addition of 2 wt % Ti to the NiAl compound increases the hardness of the compound material (90NiAl 10Y2O3) to 295 HB and then increases to 330 HB by adding 2.5 wt. % Ti and continues to increase to 378 HB by adding (3 wt. % Ti). A wear test is carried out to find the wear characteristics of the composites developed by the powder metallurgy route. The results revealed that the addition of titanium leads to a decrease in the wear rate of NiAl-Y2O3. Addition of 2 wt. % Ti to (70NiAl-30Y2O3) leads to a reduction in adhesion-wear rate from (7.611 * 10-6 g/ cm) to (5.81* 10-6 g/ cm) and to (5.47*10-6 g / cm) by adding 2.5 wt. % Ti. The adhesion-wear ratio continues to decrease to 4.77 * 10-6 g/ cm by adding 3 wt. % Ti.

تحميل الملف المرفق Download Attached File

تحميل الملف من سيرفر شبكة جامعة بابل (Paper Link on Network Server) repository publications

البحث في الموقع

Authors, Titles, Abstracts

Full Text




خيارات العرض والخدمات


وصلات مرتبطة بهذا البحث