Effect of impurity levels on precipitation behavior in the low-activation V–4Cr–4Ti alloys
Effect of impurity levels on precipitation behavior in the low-activation V–4Cr–4Ti alloys
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DOI：
10.1016/s0022-3115(02)01040-1
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发表时间：
2002-12
影响因子：
3.1
通讯作者：
N. Heo;T. Nagasaka;T. Muroga;H. Matsui
中科院分区：
文献类型：
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作者：
N. Heo;T. Nagasaka;T. Muroga;H. Matsui
研究了不同氧、氮含量的V-4Cr-4 Ti模型合金的析出行为。观察到细小和大的沉淀物。在初始制造过程中形成了大的沉淀物，并稳定到1373 K。973 K时析出细小的沉淀相，1373 K时消失。在不同退火温度下的硬度和显微组织对氧和氮含量的依赖性表明，大部分的氮杂质被包含在大的沉淀物中，而氧杂质被分配到大的，细的沉淀物和基体中。
The precipitation behavior of the V–4Cr–4Ti model alloys with different oxygen and nitrogen levels has been investigated. Fine and large precipitates were observed. Large precipitates were formed during the initial fabrication process and were stable to 1373 K. Fine precipitates were formed at 973 K and disappeared at 1373 K. The dependence of the hardness and microstructure on oxygen and nitrogen levels at various annealing temperatures showed that most of nitrogen impurities are included into the large precipitates, and oxygen impurities are partitioned into the large, fine precipitates and the matrix.