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Phase transformation of Ti60Cu14Ni12Sn4Nb10 metallic glass during annealing at different temperatures
Author(s): 
Pages: 36-40
Year: Issue:  3
Journal: TRANSACTIONS OF MATERIALS AND HEAT TREATMENT

Keyword:  Ti基复合材料退火晶化相转变显微组织;
Abstract: 通过水冷铜模吸铸法制备出了Ti60 Cu14 Ni12Sn4 Nb10复相合金.对合金在不同温度下等温退火过程中的相转变及显微结构演化进行了研究.结果表明,该合金的显微组织主要由β-Ti枝晶相、纳米晶化相和少量非晶相组成.在450℃退火时,合金中有ω-Ti和面心立方结构的Ti形成;而在550℃退火时ω-Ti消失,同时由于非晶相发生了晶化,基体中有TiNi相析出,该晶化相在高于715℃时,转变为稳定的Ti2Ni相;当温度达到795℃时,合金中的β-Ti枝晶相转化为α-Ti.
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