GERİ DÖNÜŞTÜRÜLMÜŞ VE TİCARİ OLARAK TEMİN EDİLEN TM TİTANYUM ALAŞIMLARININ DARBE DAYANIMININ İNCELENMESİ

Yıl 2019, , 232 - 237, 26.06.2019

Mustafa Ustundag , Remzi Varol

https://doi.org/10.21923/jesd.461882

Cited By: 1

Öz

Titanyum alaşımları yüksek kütle – dayanım oranı gibi
özellikleri sayesinde, biyomedikal, askeri, spor ve havacılık gibi birçok
endüstriyel alanda kullanılmaktadır. Birçok endüstriyel alanda tercih
edilmesine rağmen, yüksek maliyeti ve düşük geri dönüşüm oranı titanyum alaşımı
malzemelerin kullanım alanlarını kısıtlamaktadır. Bu çalışma kapsamında partikül
boyut dağılımının, ticari ve geri dönüştürülmüş toz metal Ti-6Al-4V
alaşımlarının darbe dayanımları üzerindeki etkileri araştırılmaya
çalışılmıştır. Bu kapsamda -40 µm toz partikül boyutundaki TM numunelere Charpy
darbe testi uygulanmış ve numunelerin mikroyapıları incelenmiştir. Sonuçlar -40
 µm toz partikül boyutundaki numuneler
için ticari toz ile üretilenlerin daha yüksek dayanım değerlerine ulaştığı
göstermektedir.

Anahtar Kelimeler

Ti-6Al-4V, Sinterleme, Geri dönüşüm, Darbe dayanımı, Sıkıştırma

COMPARISON OF IMPACT PROPERTIES OF RECYCLED AND COMMERCIALLY AVAILABLE PM TITAMIUM ALLOYS

Öz

Titanium alloys are used
in many specific applicants such as biomedical, military, sporting goods and
aerospace industry due to their high strength properties and low aspect ratio.
Even though their outstanding properties, titanium alloys have low utilization
rate and relatively low recycling ratio during manufacturing of Titanium parts.
In order to determine its mechanical and impact properties for low-cost
Ti-based alloy applications, powder size distribution and compacting pressure
strongly affect the microstructural properties of the sintered Ti-6Al-4V alloy.
This paper presents how the narrow particle size distribution affect the impact
properties of both recycled and commercially available Ti-6Al-4V alloys. Below
40µm particle size distribution range of Ti-6Al-4V alloys were conducted on
3-point bending, Charpy impact test and microstructural evaluation. Results
indicate that -40µm size distributed and recycled Ti-6Al-4V alloys show more
brittle behaviour than commercial available alloys.

Anahtar Kelimeler

Ti-6Al-4V, Sintering, Recycled, Impact properties, Compaction.

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