316 powder metallurgy (PM) stainless steel, leveraging its advantages of corrosion resistance, high strength, and near-net shaping, has been widely applied in scenarios such as automotive engine valve cores, medical device implants, chemical corrosion-resistant valves, offshore platform fasteners, and electronic equipment structural components.
The core purpose of its sample preparation is not only to present the microtopography but also to verify whether the material meets the requirements of service condition strength and corrosion resistance by observing pore distribution, grain size, and inclusion content—providing direct basis for production process optimization and product quality control.
For the preparation of 316 PM stainless steel samples, the following scheme is shared for reference:
1️⃣ Grind flat with P400 metallographic sandpaper;
2️⃣ Fine grinding with POS disc + 9μm PD-WT polishing fluid;
3️⃣ Polish with SC-JP polishing cloth + 3μm PD-WT polishing fluid;
4️⃣ Polish with ET-JP polishing cloth + 1μm PD-WT polishing fluid;
5️⃣ Perform final polishing with ZN-ZP polishing cloth + SO-A439 50nm polishing fluid.
After polishing, electrolytic etching is conducted with 10% oxalic acid aqueous solution at 6V for 50 seconds.
#鋼微細構造 #材料科学 #金属組織学 #鋼サンプル #微細構造分析 #鋼材準備 #材料技術者 #サンプル準備 #顕微鏡検査 #冶金試験 #鋼合金 #鋼材研磨 #微細構造試験 #金属組織学研究室#材料分析 #鋼材品質 #顕微鏡ビュー #冶金工学 #LabTechLife #材料試験 #構造分析 #冶金月曜日 #断面 #冷間実装
