Effects of alloying element and cooling rate on properties of AM60 Mg alloy

Elen, Levent; Çiçek, Bünyamin; Koç, Erkan; Türen, Yunus; Sun, Yavuz; Ahlatçı, Hayrettin

doi:10.1088/2053-1591/ab2b13

Cited by 22 publications

(13 citation statements)

References 51 publications

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“…The image obtained as a result of applying the Hue color filter is shown in Fig. (7). Up to this stage, the eutectic phases in the microstructure images have been segmented to a large extent.…”

Section: Proposed Methodsmentioning

confidence: 99%

“…In his study, Türen reported that the Ultimate tensile strength (UTS) and yield strength (YS) values of the alloy increased with the addition of 𝑆𝑛 to AZ91 [5]. In addition, it has been proven by studies [3,[6][7][8] that in general, Mg-alloys exhibit different mechanical properties with the change of cooling rate. It has been reported in studies [3,6,8] that the effect of cooling rate is very important in the development of microstructure and mechanical properties of AZ91 alloys.…”

Section: Introductionmentioning

confidence: 99%

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AZ91 Mg Alaşımlarının Mikroyapısındaki İntermetalik ve Ötektik Fazların Görüntü İşleme Teknikleriyle Otomatik Tespiti

Elen

2022

Mühendislik Bilimleri Ve Araştırmaları Dergisi

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AZ91, which is used in the production of parts in the aerospace, defense and automotive industries, can be enhanced by the addition of an alloying element or the cooling rate, due to the weak strength and formability properties of advanced technology Mg-alloys. The microstructure change in Mg alloys significantly affects the mechanical properties. By analyzing the microstructure of these alloys, a close estimate of the mechanical properties can be made. In this study, an image processing-based model is proposed that automatically recognizes the intermetallic and eutectic phases required for the analysis of microstructural properties in AZ91 Mg-alloys. The proposed method consists of two stages; In the first step, the eutectic phase template is obtained as a binary image. In the second step, the binary image containing the intermetallic and eutectic phases is obtained and the result image with only the intermetallic phases is obtained by taking the difference of these two patterns. Experimental studies have shown that the proposed method gives a result close to the real value in the detection of eutectic phases.

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Section: Proposed Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

AZ91 Mg Alaşımlarının Mikroyapısındaki İntermetalik ve Ötektik Fazların Görüntü İşleme Teknikleriyle Otomatik Tespiti

Elen

2022

Mühendislik Bilimleri Ve Araştırmaları Dergisi

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“…devreye girmesi gerekebilir. Bunun yanı sıra en iyi mekanik özelliklerin elde edilmesi için sadece üretim yöntemi değil alaşım elementleri ve soğuma hızı [2]- [4] bu duruma etki eder. Dolayısıyla da farklı yöntemlerle elde edilen bazı mekanik özellikler, döküm yöntemi, soğuma hızı ve alaşım elementlerinin sayesinde de sağlanabilir.…”

Section: Introductionunclassified

Biyobozunur Mg-Ag Alaşımlarının Mikroyapı, Mekanik ve Korozyon Özelliklerine Zn ve Nd Elementlerinin Etkisi

Elen

2022

Düzce Üniversitesi Bilim Ve Teknoloji Dergisi

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Bu çalışmada, %0,5 oranlarında (Zn ve Nd) element ilaveli Mg-%3Ag döküm alaşımlarının, mikroyapı, mekanik, in vitro korozyon özellikleri incelenmiştir. Deney sonuçlarına göre, alaşımlara ilave edilen Zn elementinin etkisiyle (Mg-3Ag-0,5Zn) alaşımda tanelerin inceldiği ve bu sayede alaşımların bazı mekanik özelliklerinin de arttığı gözlenmiştir. Nd elementi ilavesi ile oluşturulan (Mg-3Ag-0,5Nd) alaşımında ise en yüksek sertlik değeri gözlenmiştir. Korozyon testleri sonrasında ise alaşım elementlerine bağlı olarak farklı korozyon değerleri tespit edilmiştir. Alaşımların yapısında tespit edilen ikincil fazların, alaşımların mekanik özelliklerine ve korozyon özelliklerine etki ettiği tespit edilmiştir. Tüm bu sonuçlar neticesinde Mg-Ag alaşımlarının biyomalzeme alanında gelişime açık ve ihtiyaç duyduğu kanısına varılmıştır.

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“…A quintessential example should be cited that an extrusion, the conventional thermomechanical processing, could reduce the microstructure defects, trigger dynamic recrystallization (DRX), and finally refine the grains. Another method is elemental alloying by adding Al, Zn, Ca, rare earth (RE) elements and so on [9][10][11][12][13]. Although the extruded REcontaining alloys exhibited better performance in the mechanical properties in particular, for instance, Mg-2.4Zn-0.8Gd alloy with a tensile yield strength (TYS) of 284 MPa and ultimate tensile strength (UTS) of 338 MPa [14], RE-free Mg alloys are more competitive for commercial utilization because of the biosafety [15].…”

Section: Introductionmentioning

confidence: 99%

Microstructure, mechanical and corrosion properties of novel quaternary biodegradable extruded Mg–1Zn–0.2Ca-xAg alloys

Wang

Yuan

et al. 2020

Mater. Res. Express

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In the anastomotic surgery, the currently used degradable magnesium alloys are facing some bottleneck problems such as lower mechanical properties and slower degradation rate. In this study, the novel biodegradable extruded Mg-1Zn-0.2Ca-xAg (x=0, 1, 2, 4) alloys will be developed and the corresponding microstructure, mechanical, and corrosion properties after Ag addition will be investigated. The results indicate that with the Ag addition, the grain size is refined due to fully dynamic recrystallization and Ag 17 Mg 54 phase, an important strengthening phase, begin to be precipitated in the Ag-contained alloys. Due to the stronger solution strengthening and precipitation strengthening, the Mg-1Zn-0.2Ca-4Ag alloy attains the highest ultimate tensile strength among all the alloys. Moreover, Ag element also enhances the electrode potential of the matrix, reduces the susceptibility of pitting corrosion and accelerates the corrosion rate of the alloys by micro-galvanic corrosion between the second phases and the matrix from the analyses of corrosion products and 3D Volta potential map. As a result, 4Ag alloys attain the fastest degradation rate among all the alloys. Combing the mechanical and corrosion results, it can be seen that 4Ag alloys, as novel biodegradable magnesium alloys, can meet the requirement of anastomotic surgery preferably, exhibiting the better application prospects.

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Effects of alloying element and cooling rate on properties of AM60 Mg alloy

Cited by 22 publications

References 51 publications

AZ91 Mg Alaşımlarının Mikroyapısındaki İntermetalik ve Ötektik Fazların Görüntü İşleme Teknikleriyle Otomatik Tespiti

AZ91 Mg Alaşımlarının Mikroyapısındaki İntermetalik ve Ötektik Fazların Görüntü İşleme Teknikleriyle Otomatik Tespiti

Biyobozunur Mg-Ag Alaşımlarının Mikroyapı, Mekanik ve Korozyon Özelliklerine Zn ve Nd Elementlerinin Etkisi

Microstructure, mechanical and corrosion properties of novel quaternary biodegradable extruded Mg–1Zn–0.2Ca-xAg alloys

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