Influence of variable temperatures irradiation on microstructural evolution in phosphorus doped Fe–Cr–Ni alloys
Influence of variable temperatures irradiation on microstructural evolution in phosphorus doped Fe–Cr–Ni alloys
复制标题
变温辐照对磷掺杂 Fe-Cr-Ni 合金显微组织演变的影响
DOI：
10.1016/s0022-3115(00)00133-1
复制
发表时间：
2000
影响因子：
3.1
通讯作者：
N. Yoshida
中科院分区：
文献类型：
--
作者：
D. Hamaguchi;Hideo Watanabe;T. Muroga;N. Yoshida
为了评价温度变化对磷变质Fe-Cr-Ni合金显微组织演变的影响，用2.4MeV Cu离子对Fe-16 Cr-17 Ni-0.1P合金进行了473/923、673/923、773/923 K的辐照。在这些实验中，试样温度在照射期间以逐步方式改变。在673/923 K辐照的情况下，在923 K下第二次辐照后的磷化物密度比在923 K下恒温辐照的磷化物密度高约2个数量级。在较低温度下的第一次辐照的影响保持到75 dpa的较高剂量水平。在不同温度辐照后观察到约12%的高空隙膨胀。另一方面，在恒温照射中，空隙膨胀被强烈抑制。473/923 K辐照时，第一次辐照的影响相对较小。在473 K的第一次辐照过程中形成的缺陷团簇在温度升高到923 K时消失，并且在923 K的第二次辐照过程中的显微组织演变与恒温辐照中的相似。
To evaluate the influence of temperature change on microstructural evolution in phosphorus modified Fe–Cr–Ni alloys, irradiations at 473/923, 673/923, 773/923 K were performed on a Fe–16Cr–17Ni–0.1P alloy with 2.4 MeV Cu ions. In these experiments, specimen temperature was changed in a stepwise manner during the irradiation. In the case of 673/923 K-irradiation, the phosphide density after the second irradiation at 923 K was about 2 orders of magnitude higher than that in the constant temperature irradiation at 923 K. The influence of the first irradiation at lower temperature remained to a higher dose level of 75 dpa. High void swelling of about 12% was observed after varying temperature irradiation. In the constant temperature irradiation, on the other hand, void swelling was strongly suppressed. The influence of the first irradiation was relatively small in 473/923 K-irradiation. Defect clusters formed during the first irradiation at 473 K disappeared during temperature elevation up to 923 K, and the microstructural evolution during the second irradiation at 923 K was similar to that in the constant temperature irradiation.