Powder Metallurgy Preparation of Mg-Ca Alloy for Biodegradable Implant Application

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Annur, Dhyah; Suhardi, Achmad; Amal, M. Ikhlasul; Anwar, Moch. Syaiful; Kartika, Ika, 2018, "Powder Metallurgy Preparation of Mg-Ca Alloy for Biodegradable Implant Application", https://hdl.handle.net/20.500.12690/RIN/SZ8IRY, RIN Dataverse, V2

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Description

Magnesium and its alloys is a promising candidate for implant application especially due to its biodegradability. In this study, Mg-7Ca alloys (in weight persen) were processed by powder metallurgy from pure magnesium powder and calcium granule. Milling process was done in a shaker mill using stainless steel balls in various milling time (3, 5, and 8 hours) followed by compaction and sintering process. Different sintering temperatures were used (450°C and 550°C) to examine the effect of sintering temperature on mechanical properties and corrosion resistance. Microstructure evaluation was characterized by X-ray diffraction, scanning electron microscope and energy dispersive X-ray spectroscopy. Mechanical properties and corrosion behavior were examined through hardness testing and electrochemical testing in Hank’s solution (simulation body fluid). In this report, a prolonged milling time reduced particle size and later affected mechanical properties of Mg alloy. Meanwhile, the phase analysis showed that α Mg, Mg2Ca, MgO phases were formed after the sintering process. Further, this study showed that Mg-Ca alloy with different powder metallurgy process would have different corrosion rate although there were no difference of Ca content in the alloy.

ISFAP 2016

(2016)

Subject

Physics

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	Figure 1. SEM images of Mg-7Ca alloy..JPG JPEG Image - 50.9 KB Published Nov 13, 2018 1 Download MD5: 2604b6043bcbd49b391609ad7310ff8f Figure 1. SEM images of Mg-7Ca alloy. (a) Before milling and after milling for (b) 3 hrs, (c) 5 hrs and (d) 8 hrs Data	Access File Download Options Download
	Figure 3. SEM images of as-sintered Mg-Ca alloy in different heat treatment profile..JPG JPEG Image - 103.8 KB Published Nov 13, 2018 1 Download MD5: 844e86ec12d4225e72ed048208ebfc96 Figure 3. SEM images of as-sintered Mg-Ca alloy in different heat treatment profile. (a). 3M-450°C, (b) 5M-450°C, (c) 8M-450°C, (d) 3M-550°C, (e) 5M-550°C, (f) 8M-550°C. Data	Access File Download Options Download
	Powder Metallurgy Preparation of Mg-Ca Alloy for Biodegradable Implant Application.pdf Adobe PDF - 1.4 MB Published Nov 13, 2018 1 Download MD5: 88217ac5f75cde9ed5abe73d808eef51	Access File Download Options Download
	Table 1. List of specimens.JPG JPEG Image - 25.9 KB Published Nov 13, 2018 1 Download MD5: 40c266c6c07965bff13453f3bf3c9cc9 Table 1. List of specimens Data	Access File Download Options Download
	Table 2. Composition analysis obtained by EDS.JPG JPEG Image - 32.2 KB Published Nov 13, 2018 1 Download MD5: a054fc93a014518b39fed448c513c9cd Table 2. Composition analysis obtained by EDS Data	Access File Download Options Download
	Table 3. Milling time vs average hardness property (HVN)..JPG JPEG Image - 26.4 KB Published Nov 13, 2018 1 Download MD5: afe259a836cff45301d3fb75dced0165 Table 3. Milling time vs average hardness property (HVN). Data	Access File Download Options Download
	Table 4. Corrosion properties of Mg-Ca alloys in Hank’s solution obtained from the polarization test..JPG JPEG Image - 32.4 KB Published Nov 13, 2018 1 Download MD5: eda02ad47b86c29944b2746bbd36df0f Table 4. Corrosion properties of Mg-Ca alloys in Hank’s solution obtained from the polarization test. Data	Access File Download Options Download

Citation Metadata

Dataset Persistent ID	hdl:20.500.12690/RIN/SZ8IRY
Publication Date	2018-05-23
Title	Powder Metallurgy Preparation of Mg-Ca Alloy for Biodegradable Implant Application
Author	Annur, Dhyah (Pusat Penelitian Metalurgi dan Material) Suhardi, Achmad (Pusat Penelitian Metalurgi dan Material) Amal, M. Ikhlasul (Pusat Penelitian Metalurgi dan Material) Anwar, Moch. Syaiful (Pusat Penelitian Metalurgi dan Material) Kartika, Ika (Pusat Penelitian Metalurgi dan Material)
Contact	Use email button above to contact. Annur, Dhyah (Pusat Penelitian Metalurgi dan Material)
Description	Magnesium and its alloys is a promising candidate for implant application especially due to its biodegradability. In this study, Mg-7Ca alloys (in weight persen) were processed by powder metallurgy from pure magnesium powder and calcium granule. Milling process was done in a shaker mill using stainless steel balls in various milling time (3, 5, and 8 hours) followed by compaction and sintering process. Different sintering temperatures were used (450°C and 550°C) to examine the effect of sintering temperature on mechanical properties and corrosion resistance. Microstructure evaluation was characterized by X-ray diffraction, scanning electron microscope and energy dispersive X-ray spectroscopy. Mechanical properties and corrosion behavior were examined through hardness testing and electrochemical testing in Hank’s solution (simulation body fluid). In this report, a prolonged milling time reduced particle size and later affected mechanical properties of Mg alloy. Meanwhile, the phase analysis showed that α Mg, Mg2Ca, MgO phases were formed after the sintering process. Further, this study showed that Mg-Ca alloy with different powder metallurgy process would have different corrosion rate although there were no difference of Ca content in the alloy. ISFAP 2016 (2016)
Subject	Physics
Depositor	Wulandari, Desi
Deposit Date	2018-04-04

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