一、钕合金的物理冶金 纯钛有同素异晶相转变,在882℃从低温的α相(密排六方)转变为高温的β相(体心立方)。根据合金元素在α相和β相中有不同的溶解度,或是根据它们对相变温度的影响,可将合金元素大致分为α稳定元素及β稳定元素。铝及间隙元素氧、氮和碳是很强的α稳定元素,而锡、锆和硅对相变温度仅有很微弱的作用(稍稍降低相变点)。 First, the neodymium alloy physical metallurgy pure titanium allotrophic phase transition at 882 ℃ from the low-temperature α phase (hexagonal tight) into a high-temperature β phase (body-centered cubic). Alloying elements can be roughly divided into α-stabilizing elements and β-stabilizing elements according to the different solubility of the alloying elements in the α and β phases or their influence on the transformation temperature. Aluminum and interstitial elements Oxygen, nitrogen and carbon are strong α-stable elements, while tin, zirconium and silicon have only a weak effect on the phase transition temperature (a slight reduction of the transformation point).