TY  - JOUR
T1  - AA7075-T6 Alaşımının Farklı Sıcaklıklardaki Çekme Davranışının Deneysel ve Nümerik Yöntemler ile İncelenmesi
TT  - Examination with Experimental and Numerical Methods of Tensile Behavior of AA7075-T6 Alloy at Different Temperatures
AU  - Çetin, Muhammet Hüseyin
AU  - Korkmaz, Şeyma
AU  - Çetin, Mehmet Emin
AU  - Belrzaeg, Mohamed Ali Emhmed
PY  - 2018
DA  - August
DO  - 10.29130/dubited.433933
JF  - Duzce University Journal of Science and Technology
JO  - DÜBİTED
PB  - Duzce University
WT  - DergiPark
SN  - 2148-2446
SP  - 902
EP  - 915
VL  - 6
IS  - 4
LA  - tr
AB  - Buçalışmada, AA7075-T6 alaşımının oda sıcaklığındaki ve 100 oC, 150 oC,200 oC, 250 oC ve 300 oC sıcaklıklardaki çekmedavranışı deneysel, fragtografik ve nümerik olarak incelenmiştir. Deneyselolarak elde edilen akma (σa) ve çekme (σç) mukavemeti ilebirim şekil değiştirme değerlerinin (ε) sıcaklık değişimine bağlı değişimigrafiksel ve istatistiksel olarak incelenmiştir. Deneysel verilerin nümerikanalizi için Piecewise malzeme modeli kullanılmış ve renk analizi yöntemi ilegerilme dağılımları incelenmiştir. Fragtografik analiz için deformasyonbölgelerinin SEM görüntüleri incelenmiş,oda sıcaklığı, 100 oC, 150 oC sıcaklıklarda taneiçi kırılma, 200 oC, 250 oC ve 300 oCsıcaklıklarda tane sınırlarında kırılma meydana geldiği görülmüştür. Deneysel veriler genel olarakdeğerlendirildiğinde; 100 oC sıcaklığa kadar malzemenin mekaniközeliklerinde değişiklik görülmemiş, 100 oC – 250 oCaralığında malzemenin sünekliği artmış, akma ve çekme mukavemetleri belirli biroranda azalmış, sıcaklık 300 oC’yeulaştığında ise akma ve çekme mukavemetinde yüksek oranda azalma meydanagelmiştir.
KW  - AA7075-T6
KW  - Çekme deneyi
KW  - Fragtografik Analiz
KW  - Nümerik Analiz
N2  - In this study, tensile behaviour of AA7075-T6 alloy at room temperature and at temperatures of 100 ⁰C, 150 ⁰C, 200⁰C, 250 ⁰C and 300 ⁰C was investigated experimentally, by using fragtographic results and numerically. The alteration of experimentally obtained values of yield (σa) and tensile (σç) stresses with strain parameter (ε) according to the temperature was investigated graphically and statistically. For the numerical analysis of the experimental data, Piecewise material model was used and stress distributions were examined by colour analysis method. For fragtographic analysis, SEM images of deformation zones were investigated and it was observed that the transgranular fracture was occurred at room temperature, 100 ⁰C and 150 ⁰C temperatures, and intergranular fracture was occurred at 200 ⁰C, 250 ⁰C and 300 ⁰C temperatures. When the experimental results are evaluated in general, the mechanical properties of the material are not changed up to 100 ⁰C. The material ductility increased,and the yield and tensile strengths decreased at a certain rate between 100 ⁰C and 250 ⁰C. When the temperaturereaches 300 ⁰C, the flow and tensile strength decrease at a high rate.
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UR  - https://doi.org/10.29130/dubited.433933
L1  - https://dergipark.org.tr/en/download/article-file/517314
ER  -