In the Late Classic Period Yaxchilan was one of the most powerful Maya cities along the course of the Usumacinta, with Piedras Negras as its major rival. Architectural styles in subordinate sites in the Usumacinta region demonstrate clear differences that mark a clear boundary between the two kingdoms.
Answered by The Community. Making the world better, one answer at a time. Steel is not usually considered a composite, as it is macroscopically homogeneous. However, some steel types, including classical iron-carbon steel, can be considered as metal-matrix composites, as they contain a second phase... sometimes.
Making the world better, one answer at a time. Forged steel has been subject to high temperature and pressure forcing the crystal structure closer together and increasing tensile strength (used in high pressure gas compressors).Carbon steel is conventional steel produced by the Bessemer process.In the oil industry carbon steel is the default option for casing and tubing used in oil wells but it is not very resistant to corrosion.arbon steel is conventional steel produced by the Bessemer process. In the oil industry carbon steel is the default option for casing and tubing used in oil wells but it is not very resistant to corrosion.