)與結(jié)合能之差()來表征。溶入鋯基體后結(jié)合能之和較小的Cr、Al、Sn、Fe、Cu、Ni、Ti等元素會(huì)抑制α→β相轉(zhuǎn)變,提升相變溫度;而溶入鋯基體后結(jié)合能之和較大的Hf、V、Mo、Pd、Nb、Re等元素會(huì)促進(jìn)α→β相轉(zhuǎn)變,降低相變溫度。在鋯合金相變過程中,具有正結(jié)合能之差的元素(Al)將促進(jìn)β→α相轉(zhuǎn)變,提升相變溫度;具有負(fù)結(jié)合能之差的元素(Cr、Sn、Fe、Cu、Ni、Ti、Hf、V、Mo、Pd、Nb、Re等)將抑制β→α相轉(zhuǎn)變,降低相變溫度。α相穩(wěn)定元素(Al)和β相穩(wěn)定元素(Mo、Nb、Re、V、Pd)可用來解釋,但是β相穩(wěn)定元素(Cr、Fe、Cu、Ni、Ti)主要通過來解釋;此外,α相穩(wěn)定元素(Sn、Hf)可以用較小的來描述。;According to the self-consistent bond length difference (SCBLD) method based on the empirical electron theory of solids and molecules, namely the Yu Ruihuang electron theory, the valence electron structure parameters (VESPs) were calculated to characterize the properties of alloy phases, and to investigate the influence of alloying elements (Al, Sn, Ti, Hf, V, Mo, Nb, Cu, Fe, Cr, Ni, Pd, and Re) on the phase transformation temperature of zirconium alloys. The results show that the sum of cohesive energy () and the cohesive energy difference () of α and β phases can be used to characterize the effect of alloying elements on the phase transformation temperature of zirconium alloys. After dissolution into the zirconium matrix, the alloying elements (Cr, Al, Sn, Fe, Cu, Ni, and Ti) with smaller can inhibit the α→β phase transformation and increase the phase transformation temperature. However, the elements dissolved into the zirconium matrix, such as Hf, V, Mo, Pd, Nb, and Re, can promote the α→β phase transformation and reduce the phase transformation temperature because of the larger . In the phase transformation process of zirconium alloys, the element (Al) with positive accelerates the β→α phase transformation and increases the phase transformation temperature; the elements (Cr, Sn, Fe, Cu, Ni, Ti, Hf, V, Mo, Pd, Nb, and Re) with negative ΔC hinders the β→α phase transformation and decreases the phase transformation temperature. The α-stabilizers (Al) and the β-stabilizers (Mo, Nb, Re, V, Pd) can be explained by both the and , whereas the β-stabilizers (Cr, Fe, Cu, Ni, and Ti) can only be explained by . In addition, the α-stabilizers (Sn and Hf) can only be explained by ."/>

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