oxide inclusions

Strontium’s Effect on Micro-Porosity in Aluminum Castings

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Porosity has long been one of the most persistent quality challenges in aluminum castings. While macro-porosity can often be identified and removed, micro-porosity—tiny voids dispersed within the casting—poses a more insidious threat, reducing mechanical strength, fatigue resistance, and leak tightness. Among the many factors influencing porosity, the addition of Strontium (Sr), a widely used eutectic … Read more

Why Correct Identification of Casting Defects Is Critical for Effective Solutions

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Introduction Casting is one of the oldest and most versatile manufacturing processes, but it comes with a challenge every foundry engineer knows well: defects. From surface blemishes to hidden internal flaws, defects reduce yield, increase scrap, and can compromise safety if undetected. What often gets overlooked is this: it’s not enough to just notice a defect … Read more