William A.T. Clark

TL;DR: In this article, the interaction of three large-angle near-coincident-site-lattice grain boundaries (Sgrave]3, Sgrave 9 and Sgrave 27) in a polycrystal of silicon, has been observed both optically and by transmission electron microscopy (TEM).

TL;DR: In this paper, the role of orientation relationships in the nucleation and growth of the massive transformation was investigated and the conclusion was reached that orientation relationships capable of producing low energy, zero mobility interfaces play the same type of dominant roles in massive transformation nucleation as they do in precipitation from solid solution.

TL;DR: In this article, the structure of the interfaces formed between refined hexagonal close packed (hcp) α precipitates and the body centered cubic (bcc) β matrix in a solution-treated and quenched metastable β titanium alloy, Ti-5Al-5Mo-5V-3Cr (wt%, Ti-5553), were investigated after heating to 600°C and subsequently aging for 0 and 30 minutes, respectively.

TL;DR: In this article, a computerized method for determining crystal orientations from six Kikuchi line patterns is described, where the user need only specify a reference direction and the coordinates of the origin and of two points on each of the six lines (three pairs).

TL;DR: The grain structure, inclusion content, and precipitate types were characterized for six heat treatments of a copper-bearing HSLA steel as discussed by the authors, where a higher austenitizing temperature combined with water-quenching resulted in an acicular ferrite microstructure, while lower temperatures produced equiaxed ferrite or ferrite-pearlite structures.