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首页> 外文期刊>Fusion Engineering and Design >Response of microstructure and hardening to deuterium ion irradiation inV- 4Cr-4Ti-1.8Y-0.4Ti_3SiC_2 and V-4Cr-4Ti alloy
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Response of microstructure and hardening to deuterium ion irradiation inV- 4Cr-4Ti-1.8Y-0.4Ti_3SiC_2 and V-4Cr-4Ti alloy

机译：微观结构和硬化对氘离子辐照造录的响应 - 4Cr-4Ti-1.8Y-0.4Ti_3SIC_2和V-4CR-4TI合金

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摘要

Deuterium implantation with 60 keV was carried out in V-4Cr-4Ti-1.8Y-0.4Ti(3)SiC(2) alloy prepared via MA-HIP method and V-4Cr-4Ti alloys prepared by VAR. Dispersion particles, Ti-rich precipitates and irradiation-induced dislocation loops are studied using TEM. Micro-hardness and radiation-hardening are measured using Nano-indenter. The dissolving of additional Ti3SiC2 particles and the formation of Y2O3, (Ti, Si) C and Y-2 (Ti, Si)(2)O-7 particles are observed in V-4Cr-4Ti-1.8Y-0.4Ti(3)SiC(2) alloy. Ti-rich precipitates in both alloys prefer to grow along 100 (M) direction, where the precipitates/matrix interfaces have minimum distortion energy. Ti-rich precipitates in V-4Cr-4Ti-1.8Y-0.4Ti(3)SiC(2) alloy is much smaller. Although the mean size and density of dislocation loops is similar in both kinds of alloy, V-4Cr-4Ti-1.8Y-0.4Ti(3)SiC(2) alloy has a much lower radiation-hardening. TEM results show that Ti-rich precipitates in V-4Cr-4Ti-1.8Y-0.4Ti(3)SiC(2) alloy grow up after irradiation, while the size of precipitates decrease in V-4Cr-4Ti alloy. The calculation results based on Orowan mechanism show that the size evolution of Ti-rich precipitates is the dominant factor for the different behavior of two alloy on radiation-hardening.
机译：通过MA-HIP方法和VAR制备的V-4CR-4TI合金制备的V-4Cr-4Ti-1.8Y-0.4TI（3）SiC（2）合金，在V-4Cr-4Ti-1.8Y-0.4TI（3）SiC（2）合金中进行氘植入。使用TEM研究分散颗粒，富含Ti的沉淀和辐照诱导的位错环。使用纳米压头测量微硬度和辐射硬化。在V-4CR-4TI-1.8Y-0.4TI中观察到溶解另外的Ti3 SiC 2颗粒和Y 2 O 3，（Ti，Si）C和Y-2（Ti，Si）（2）O-7颗粒（3 ）SiC（2）合金。两种合金中的富含Ti的沉淀物较喜欢沿<100（m）方向生长，其中沉淀物/基质界面具有最小的变形能量。 V-4CR-4TI-1.8Y-0.4TI（3）SiC（2）合金中的Ti富沉淀物较小。尽管在两种合金中的均匀环的平均尺寸和密度相似，但V-4CR-4TI-1.8Y-0.4TI（3）SiC（2）合金具有更低的辐射硬化。 TEM结果表明，V-4CR-4TI-1.8Y-0.4TI（3）SiC（2）合金中的Ti富沉淀物在照射后延长，而V-4CR-4Ti合金的沉淀物的尺寸降低。基于orowan机制的计算结果表明，富含Ti富沉淀物的大小演化是两种合金对辐射硬化的不同行为的显性因素。

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  • 来源
    《Fusion Engineering and Design》 |2020年第10期|111789.1-111789.9|共9页
  • 作者

    Zhang Y. F.; Du J. K.; Liu P. P.; Zheng P. F.; Yang S. W.; Wan F. R.; Zhan Q.;

  • 作者单位

    Univ Sci & Technol Beijing Sch Mat Sci & Engn Beijing 10083 Peoples R China;

    Univ Sci & Technol Beijing Sch Mat Sci & Engn Beijing 10083 Peoples R China;

    Univ Sci & Technol Beijing Sch Mat Sci & Engn Beijing 10083 Peoples R China;

    Southwestern Inst Phys Chengdu 610200 Sichuan Peoples R China;

    Univ Sci & Technol Beijing Collaborat Innovat Ctr Steel Technol Beijing 100083 Peoples R China;

    Univ Sci & Technol Beijing Sch Mat Sci & Engn Beijing 10083 Peoples R China;

    Univ Sci & Technol Beijing Sch Mat Sci & Engn Beijing 10083 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    TEM; V-4Cr-4Ti; Radiation-hardening; ODS; Dispersion strengthening; Precipitates;

    机译：TEM;V-4CR-4TI;辐射硬化;ODS;分散强化;沉淀;

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