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1.发明授权Forming metal-intermetallic or metal-ceramic composites by self-propagating high-temperature reactions 失效通过自蔓延的高温反应形成金属 - 金属间化合物或金属 - 陶瓷复合材料
公开(公告)号：US5564620A
公开(公告)日：1996-10-15
申请号：US139688
申请日：1993-10-22
CPC分类号： C04B35/651 , C22C1/0491
摘要： Industrial applications of composites often require that the final product have a complex shape. In this invention intermetallic or ceramic phases are formed from sheets of unreacted elemental metals. The process described in this invention allows the final product shape be formed prior to the formation of the composite. This saves energy and allows formation of shaped articles of metal-intermetallic composites composed of brittle materials that cannot be deformed without breaking.
摘要翻译： 复合材料的工业应用通常要求最终产品具有复杂的形状。 在本发明中，由未反应的元素金属片形成金属间化合物或陶瓷相。 本发明描述的方法允许在形成复合材料之前形成最终产品形状。 这样可以节省能源，并且可以形成由脆性材料组成的金属 - 金属间复合材料的成形制品，不会变形而不破裂。
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2.发明授权Method for improving the corrosion resistance of a zirconium-based material by laser beam 失效通过激光束改善锆基材料的耐腐蚀性的方法
公开(公告)号：US5236524A
公开(公告)日：1993-08-17
申请号：US826320
申请日：1992-01-21
申请人： James C. Rawers , Wayne E. Reitz
发明人： James C. Rawers , Wayne E. Reitz
摘要： A method for improving the corrosion resistance of a zirconium-based material in an acid environment. A laser beam is scanned across the entire surface of the material to cause surface melting of the material. A rapid self-quenching is provided by the underlying substrate. Homogeneous material formed during solidification of the molten pool improves the corrosion resistance. Alloy enriched diffuse regions, i.e., tin and iron, develop parallel to each other and the periphery of the edge of the melt pool. In this manner, the laser surface melting removes the intermetalics by dissolving the precipitates, thus removing the source of localized corrosion. This greatly reduces the capability of the iron to act anodically to cause the zirconium to ionize, disassociate from the matrix, and migrate into the acid solution.
摘要翻译： 一种在酸性环境中提高锆系材料的耐腐蚀性的方法。 扫描材料的整个表面上的激光束使材料表面熔化。 底层基材提供快速自淬火。 在熔池固化期间形成的均质材料提高了耐腐蚀性。 合金富集的扩散区域，即锡和铁，平行于熔池边缘的周边。 以这种方式，激光表面熔融通过溶解沉淀物去除金属间化合物，从而去除局部腐蚀源。 这大大降低了铁阳极起作用以使锆离子化，脱离基质并迁移到酸溶液中的能力。
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