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Journals / Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji / 2026 / Cilt: 14 Sayı: 2

Corrosion and Surface Roughness Characteristics of Magnesium Produced by Powder Metallurgy under Different Compaction Pressures

Farklı Sıkıştırma Basınçları Altında Toz Metalurjisi ile Üretilen Magnezyumun Korozyon ve Yüzey Pürüzlülüğü Özellikleri

Badegül Tuncay(SİVAS BİLİM VE TEKNOLOJİ ÜNİVERSİTESİ)0000-0003-4012-8343
Pages
1076–1087
Publication Date
2026-06-30
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In conclusion, SEM images showed that increasing the pressure reduced oxidation at grain boundaries.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, pure magnesium (Mg) powder particles were produced by PM at different compaction pressure (100, 200, and 400 MPa).
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Key Findings & Data:Corrosion tests were performed using the potentiodynamic polarization method in a 3.5% NaCl solution.
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Conclusion & Impact:In conclusion, SEM images showed that increasing the pressure reduced oxidation at grain boundaries.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:magnezyum · mikroyapı · korozyon davranışları

Abstract

In this study, pure magnesium (Mg) powder particles were produced by PM at different compaction pressure (100, 200, and 400 MPa). The effects of compaction pressure on the microstructure, corrosion behavior, and surface roughness of Mg have been investigated in detail. The microstructures of Mg samples produced at different compaction pressures were examined using Scanning Electron Microscopy (SEM+EDS). Mechanical properties were evaluated using density, microhardness, corrosion behavior, and surface roughness. Corrosion tests were performed using the potentiodynamic polarization method in a 3.5% NaCl solution. In conclusion, SEM images showed that increasing the pressure reduced oxidation at grain boundaries. It was observed that as the compaction pressure increased, the Mg density increased, the porosity decreased, and the powder particles could be compressed to a high degree. Corrosion resistance increased with increasing compaction pressure; the highest corrosion resistance was observed in the Mg sample subjected to 400 MPa at 3.01 mm/year, while the lowest was observed in the Mg sample subjected to 100 MPa at 11.09 mm/year. Furthermore, surface roughness tests conducted before and after corrosion analysis revealed that samples produced under a compaction pressure of 400 MPa exhibited better surface roughness than those produced under 100 MPa.

Özet

Bu çalışmada, saf magnezyum (Mg) toz parçacıkları farklı sıkıştırma basınçlarında (100, 200 ve 400 MPa) toz metalurjisi (PM) yöntemi ile üretilmiştir. Sıkıştırma basıncının Mg’nin mikroyapısı, korozyon davranışı ve yüzey pürüzlülüğü üzerindeki etkileri ayrıntılı olarak incelenmiştir. Farklı sıkıştırma basınçlarında üretilen Mg numunelerinin mikroyapıları Taramalı Elektron Mikroskobu (SEM+EDS) kullanılarak analiz edilmiştir. Mekanik özellikler yoğunluk, mikrosertlik, korozyon davranışı ve yüzey pürüzlülüğü ölçümleri ile değerlendirilmiştir. Korozyon testleri %3,5 NaCl çözeltisi içerisinde potansiyodinamik polarizasyon yöntemi kullanılarak gerçekleştirilmiştir. Sonuç olarak, SEM görüntüleri basınç artışıyla tane sınırlarındaki oksidasyonun azaldığını göstermiştir. Sıkıştırma basıncı arttıkça Mg yoğunluğunun arttığı, porozitenin azaldığı ve toz parçacıklarının yüksek oranda sıkıştırılabildiği gözlenmiştir. Sıkıştırma basıncının artmasıyla korozyon direnci artmış; en yüksek korozyon direnci 400 MPa basınca maruz kalan Mg numunesinde 3,01 mm/yıl olarak belirlenirken, en düşük korozyon direnci 100 MPa basınca maruz kalan Mg numunesinde 11,09 mm/yıl olarak tespit edilmiştir. Ayrıca, korozyon analizi öncesi ve sonrası gerçekleştirilen yüzey pürüzlülüğü testleri, 400 MPa sıkıştırma basıncı altında üretilen numunelerin 100 MPa altında üretilen numunelere kıyasla daha iyi yüzey pürüzlülüğü değerlerine sahip olduğunu ortaya koymuştur.

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Cite This Article

Tuncay, B. (2026). Corrosion and Surface Roughness Characteristics of Magnesium Produced by Powder Metallurgy under Different Compaction Pressures. Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji, Cilt: 14 Sayı: 2, 1076–1087. https://ajindex.com/articles/1398794

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