The purpose of this paper is to begin to examine the role of grain size and growth on the mokume gane diffusion bond and to try to assess what impact variations in grain size have on the success of billet reduction. We will examine grain growth at various lamination temperatures in the bulk alloys used in these tests, and then compare that with grain growth in laminated couples in and around the diffusion zone with metallographic analysis. We will also report on the results of testing these laminates in the shop. Mr. Binnion founded his company,Since optical metallography is just the first step toward the study of microstructures, the analytical potential of other techniques, such as the traditional scanning electron microscopy (SEM) or the transmission electron microscopy (TEM)–the latter used with specimens prepared by focused ion beam (FIB)–will be briefly described. These techniques can be used to complete the interpretation of the data given by metallographic analysis.

Author: James Binnion