THE EFFECT OF SINTERING TEMPERATURE ON THE MICROSTRUCTURE AND HARDNESS PROPERTIES OF OXIDE-REINFORCED A360 COMPOSITES PRODUCED BY MECHANICAL ALLOYING

Salih Bilal Çetinkal; Mustafa Acarer

Makale detayları

THE EFFECT OF SINTERING TEMPERATURE ON THE MICROSTRUCTURE AND HARDNESS PROPERTIES OF OXIDE-REINFORCED A360 COMPOSITES PRODUCED BY MECHANICAL ALLOYING

Yazarlar:

Salih Bilal Çetinkal | Mustafa Acarer

Yayıncı:

Istanbul Ticaret University

Ana Başlıklar:

Toz Metalurjisi

Dergi:

İstanbul Ticaret Üniversitesi Fen Bilimleri Dergisi Vol.23 Issue 45, pp.70-80

Belge Tipi:

Makale

Yayın Tarihi:

6/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001318566

pISSN:

1305-7820

Anahtar kelimeler:

Özet:

 In this study, the effect of sintering temperature on the microstructure and mechanical properties of A360 composites reinforced with nano-sized Y2O3 produced by powder metallurgy method has been comparatively exmined. The microstructures of the powders, subjected to 1 hour of milling using the mechanical alloying method, were scrutinized through scanning electron microscopy SEM. Subsequently, these powders were pressed under five different sintering temperatures 550, 575, 600, 625, and 650 C to produce composite samples. The microstructural alterations in the obtained samples were assessed using an optical microscope. Density and Brinell hardness measurements were conducted to define the mechanical properties of samples produced under varying sintering temperatures. Both density and hardness values consistently increased until the temperature reached 625 C, beyond which, at the final temperature of 650 C, a declining trend was observed. Consequently, samples sintered at 625 C exhibited a hardness increase of more than 100 compared to those sintered at 550 C.

 In this study, the effect of sintering temperature on the microstructure and mechanical properties of A360 composites reinforced with nano-sized Y2O3 produced by powder metallurgy method has been comparatively exmined. The microstructures of the powders, subjected to 1 hour of milling using the mechanical alloying method, were scrutinized through scanning electron microscopy SEM. Subsequently, these powders were pressed under five different sintering temperatures 550, 575, 600, 625, and 650 C to produce composite samples. The microstructural alterations in the obtained samples were assessed using an optical microscope. Density and Brinell hardness measurements were conducted to define the mechanical properties of samples produced under varying sintering temperatures. Both density and hardness values consistently increased until the temperature reached 625 C, beyond which, at the final temperature of 650 C, a declining trend was observed. Consequently, samples sintered at 625 C exhibited a hardness increase of more than 100 compared to those sintered at 550 C.

 In this study, the effect of sintering temperature on the microstructure and mechanical properties of A360 composites reinforced with nano-sized Y2O3 produced by powder metallurgy method has been comparatively exmined. The microstructures of the powders, subjected to 1 hour of milling using the mechanical alloying method, were scrutinized through scanning electron microscopy SEM. Subsequently, these powders were pressed under five different sintering temperatures 550, 575, 600, 625, and 650 C to produce composite samples. The microstructural alterations in the obtained samples were assessed using an optical microscope. Density and Brinell hardness measurements were conducted to define the mechanical properties of samples produced under varying sintering temperatures. Both density and hardness values consistently increased until the temperature reached 625 C, beyond which, at the final temperature of 650 C, a declining trend was observed. Consequently, samples sintered at 625 C exhibited a hardness increase of more than 100 compared to those sintered at 550 C.

 Bu çalışmada, Toz metalurjisi yöntemi ile üretilen nano boyutta Y2O3 takviyeli A360 kompozitlerinin mikroyapı ve mekanik özellikleri üzerine sinterleme sıcaklığının etkisi karşılaştırmalı olarak incelenmiştir. Mekanik alaşımlama yöntemi ile 1 saat öğütülen tozların mikroyapıları taramalı elektron mikroskopuyla SEM incelenmiştir. Daha sonrasında bu tozlar beş farklı sinterleme sıcaklığı 550, 575, 600, 625, ve 650 oC altında preslenerek kompozit numuneler üretilmiştir. Elde edilen numunelerin mikroyapısal değişimleri ise optik mikroskop ile değerlendirilmiştir. Farklı sinterleme sıcaklıklarında üretilen numunelerin mekanik özelliklerini karakterize etmek için yoğunluk ve Brinell sertlik ölçümleri gerçekleştirilmiştir. Hem yoğunluk hem de sertlik değerleri 625 oC sıcaklığına kadar düzenli olarak artarken bu sıcaklıktan sonraki son sıcaklık olan 650 oC de azalma eğilimine girmiştir. Sonuç olarak, 625 Cde sinterlenen numuneler, 550 Cde sinterlenenlere kıyasla 100den fazla sertlik artışı gösterdi.

Makale detayları

THE EFFECT OF SINTERING TEMPERATURE ON THE MICROSTRUCTURE AND HARDNESS PROPERTIES OF OXIDE-REINFORCED A360 COMPOSITES PRODUCED BY MECHANICAL ALLOYING

Yazarlar:

Salih Bilal Çetinkal | Mustafa Acarer

Yayıncı:

Istanbul Ticaret University

Ana Başlıklar:

Toz Metalurjisi

Dergi:

İstanbul Ticaret Üniversitesi Fen Bilimleri Dergisi Vol.23 Issue 45, pp.70-80

Belge Tipi:

Makale

Yayın Tarihi:

6/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001318566

pISSN:

1305-7820

Mechanical alloying

A360

Hardness

MicrostructureMekanik alaşımlama

A360

Sertlik

Mikroyapı

Sayı

Makale detayları

Yazarlar: Salih Bilal Çetinkal | Mustafa Acarer

Yayıncı: Istanbul Ticaret University

Ana Başlıklar: Toz Metalurjisi

Dergi: İstanbul Ticaret Üniversitesi Fen Bilimleri Dergisi Vol.23 Issue 45, pp.70-80

Belge Tipi: Makale

Yayın Tarihi: 6/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001318566

pISSN: 1305-7820

Sayı

Yazarlar:

Salih Bilal Çetinkal | Mustafa Acarer

Yayıncı:

Istanbul Ticaret University

Ana Başlıklar:

Toz Metalurjisi

Dergi:

İstanbul Ticaret Üniversitesi Fen Bilimleri Dergisi Vol.23 Issue 45, pp.70-80

Belge Tipi:

Makale

Yayın Tarihi:

6/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001318566

pISSN:

1305-7820