Sample-preparation

In this paper, different types of metal materials, especially high-purity tungsten, high nitrogen stainless steel, automotive steel, coated materials specimen cutting, setting, grinding, polishing and etching process of sample making skills and specific methods are summarised, in order to prepare a better metallographic specimen.

This article introduces the advanced chip cross-section sampling methods, as well as the comparison of three different sampling methods, including metallographic sectioning, ion milling, and focused ion beam FIB cutting.

Acceptance sampling is an important method used in sampling procedures. It is also an important field of standard quality control where a random sample is taken from a lot, and upon the results of appraising the sample, the lot will be either rejected or accepted.