tomographic TESTING of alnico alloys

Abstract

We follow an alnico alloy sample to non destructive testing using X-ray radiography. X-ray Computed Tomography (CT), also widely known as MicroCT, is a proven method for not only checking the structural integrity of casting parts -for example for porosity -but also for checking a dimensional accuracy. It is important for assessment casting with complex or small internal areas that could not be inspected by conventional measurements without failure of the final products. Moreover, we were able to visualize the internal defects of the different shapes of casting objects. The gray-value contrasts of the CT images were excellent to distinguish the resin material in the alloy samples. This will be a useful qualitative and quantitative advancement to rapid and detailed non-destructive analysis within the die-casting industries in improving the quality of the alnico alloys.

Tests for Applying Coatings Based on Aluminum and Silver on Alnico Alloys

“…Have special mechanical properties: high brittleness and relatively high hardness [29,30]. The aluminum (Al) and silver (Ag) coatings in this study were deposited by PVD physical vapor deposition on the Nanomaster NPE-4000 device (Figure 1).…”

Analyzing the Relationship between the Chemical Composition and the Surface Finish of Alnico Alloys in EDM

“…The other elements found in Alnico materials include copper and titanium [24]. Altogether, there are 29 Alnico grades, of which 17 are produced by casting (C), 10by sintering (S), and two by bonding (B) [24][25][26][27][28][29]. The commercial names of Alnico alloys include Alnico, Columax, Alcomax 3SC, Alni, Hycomax, and Ticonal [29].…”