Holger F. Struer

[1] The development of metallography was a continuous struggle to find better and easier methods to prepare metal surfaces for microstructure observation.

By pouring nitric acid over the surface and letting it react for some time, he actually made a deep etch which developed the macrostructure.

However, in 1863 Henry Clifton Sorby described in detail how he ground and polished samples in order to examine them under the microscope.

From these observations he drew conclusions regarding the structure of pearlite and ferrite, and he was also able to watch the recrystallization of steel during cold working.

In 1919 Struer obtained the Danish representation of the Austrian company, Reichert, a specialist in metallographic microscopes.

Holger Struer, 1905.
H. Struer's Chemical Laboratory photographed by Frederik Riise .
Micropol . Struers Chemiske Laboratorium launched in 1944 the polishing machine Micropol, a new principle for electrolytic polishing.