Artifacts


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Artifacts
ArtifactsThere may be features on fracture surfaces which are artifacts introduced by sample preparation and which must be distinguished from true fracture features. Some of these are usually easily identifiable, such as debris and corrosion products. Others can cause false interpretation of the fracture process.Figure 3.117 shows a fracture surface which includes regions containing parallel lines. These are similar to striations, but in this case they are caused by fracture through the parallel lamellae of ferrite and iron carbide in pearlite. Other features which can be mistaken for fatigue striations are Wallner lines (
Citation
Charlie R. Brooks; Ashok Choudhury: Failure Analysis of Engineering Materials. Artifacts, Chapter (McGraw-Hill Professional, 2002), AccessEngineering Export