论文部分内容阅读
通过成分设计,制备出了一种非难熔的钨合金,为普通熔炼设备熔炼及成形钨合金奠定基础。通过对合金微观组织的分析,查明了合金获得较低熔点的原因:钨合金中加入一定含量的碳后,形成低熔点Fe和Fe3C共晶相,并且钨合金中没有单质的难熔金属钨相存在,从而使钨合金的熔点处于非难熔水平。通过压缩试验表明,Er可以同时提高非难熔可铸造的钨合金的强度和塑性。采用普通熔炼设备制备钨合金有望成为一种新的钨合金制备方法。
Through compositional design, a non-refractory tungsten alloy was prepared, which lays the foundation for smelting and forming tungsten alloy in common smelting equipment. Through the analysis of the microstructure of the alloy, the reasons for the lower melting point of the alloy were found: adding a certain amount of carbon into the tungsten alloy to form the low melting point Fe and the Fe3C eutectic phase, and the tungsten alloy having no single refractory metal tungsten Phase exists so that the melting point of the tungsten alloy is at a non-refractory level. Compression tests show that Er can improve the strength and ductility of non-refractory castable tungsten alloys. Preparation of tungsten alloy using ordinary melting equipment is expected to become a new tungsten alloy preparation.