Fabrication and characterization of fine-grained 316L steel with 2.0 mass% TiC
Fabrication and characterization of fine-grained 316L steel with 2.0 mass% TiC
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制造%20and%20表征%20of%20细粒%20316L%20钢%20with%202.0%20质量%%20TiC
DOI：
10.1080/00223131.2016.1175390
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
M. Kawai
中科院分区：
文献类型：
--
作者：
M. Terasawa;H. Kurishita;T. Sakamoto;M. Niibe;H. Takahashi;S. Nishikawa;A. Yamamoto;M. Yamashita;T. Mitamura;T. Yamasaki;M. Kawai
考虑到热机械处理的制造工艺，尝试开发具有少量TiC的细晶粒316L以获得高耐辐射性能。所获得的材料为UFG 316L +2.0 mass% TiC，其晶粒尺寸为90-270 nm，取决于最终退火温度从700 ℃到900 ℃。采用透射电镜观察、X射线吸收近边结构谱、高压电子显微镜电子辐照和缝隙弯曲束法在高温水中（含8 ppm溶解氧）应力腐蚀开裂等方法对材料进行了研究。试验结果表明，该材料总体质量优良。特别是在400 ℃下电子辐照引起的空穴膨胀小于商业SUS 316L的1/10。
Development of fine grain 316L with small amount of TiC for high radiation-tolerant performance was tried considering the fabrication process of thermo-mechanical treatments. The materials obtained are UFG316L+2.0 mass% TiC with the grain size of 90–270 nm, depending on the final annealing temperature from 700 ℃ to 900 ℃. The materials were examined by transmission electron microscopy observation, X-ray absorption near-edge structure spectroscopy, high voltage electron microscope electron irradiation and stress corrosion cracking by crevice bent beam method in high-temperature water with 8 ppm dissolved oxygen. The test results showed that the material is generally of excellent quality. Especially void swelling induced by the electron irradiation at 400 ℃ is less than 1/10 compared to the commercial SUS316L.