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锆—2和锆—氧合金在150—500℃的范围内,发生了应变时效现象。锆—2的应变时效曲线上有二个峰值。一个发生在300℃左右,一个发生在温度略高一点的450℃左右。氧含量与锆—2相仿的锆—氧合金也有二个大小差不多的峰值,一个在250℃左右,一个在450℃。有人提出250—300℃那个峰值是由于间隙原子在时效过程中分隔了晶脆,因此稳定了位错的下层结构。促成锆—2合金的那个450℃峰值的原因,至今尚未弄清,但很可能部分的是由于氧位错联锁或是由于锆—2合金中其它元素的作用。锆—氧合金
Zirconium-2 and zirconium-oxygen alloy in the range of 150-500 ℃, the occurrence of strain aging phenomenon. Zirconium-2 strain-aging curve has two peaks. One occurs at around 300 ° C and one at around 450 ° C with slightly higher temperatures. The zirconium-oxygen alloy, which has similar oxygen content to that of zirconium-2, also has about the same size of two peaks, one around 250 ° C and one at 450 ° C. It was suggested that the 250-300 ° C peak is due to interstitial atoms separating crystallites during aging, thereby stabilizing the dislocation substructure. The reason for the 450 ° C peak for the zirconium-2 alloy has not yet been clarified, but it is probably partly due to the interlocking of oxygen dislocations or due to the action of other elements in the zirconium-2 alloy. Zirconium - oxygen alloy