Microstructural and failure characteristics of metal-lntermetallic layered sheet composites
Microstructural and failure characteristics of metal-lntermetallic layered sheet composites
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DOI：
10.1007/bf02663908
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发表时间：
1995-03
期刊：
影响因子：
--
通讯作者：
D. Alman;J. Rawers;J. Hawk
中科院分区：
文献类型：
--
作者：
D. Alman;J. Rawers;J. Hawk
提出了一种制备层状金属-金属间化合物复合材料的工艺方法，即在异种金属箔的界面上进行自蔓延高温合成反应（SHS）。得到的复合材料微观结构由完全致密、结合良好的金属-金属间化合物层状复合材料组成。在美国矿业局的这项研究中，金属（Fe、Ni或Ti）箔与Al箔反应，产生金属-金属铝化物层状复合材料。在室温下进行的拉伸试验表明，复合材料可以被设计为表现在一个高强度和高韧性的方式，通过改变起始元素箔的厚度。失效特征表明，复合材料的韧脆行为发生在断裂的早期。
A processing technique for the fabrication of layered metal-intermetallic composites is presented, in which a self-propagating, high-temperature synthesis reaction (SHS) was initiated at the interface between dissimilar elemental metal foils. The resultant composite microstructure consisted of a fully dense, well-bonded metal-intermetallic layered composite. In this United States Bureau of Mines study, metal (Fe, Ni, or Ti) foils were reacted with Al foils to produce metal-metal aluminide layered composites. Tensile tests conducted at room temperature revealed that composites could be designed to behave in a high-strength and high-toughness manner by altering the thicknesses of the starting elemental foils. Failure characteristics revealed that the processes that govern ductilevsbrittle behavior of the composites occur early in the fracture.