SR X-ray analysis of Ni-based alloys corroded in molten fluoride salt

ZHENG Junyi YU Xiaohan LIU Min ZHANG Jichao WANG Juan

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SR X-ray analysis of Ni-based alloys corroded in molten fluoride salt

更新时间：2021-03-05

- SR X-ray analysis of Ni-based alloys corroded in molten fluoride salt
- NUCLEAR TECHNIQUES Vol. 34, Issue 5, (2011)
- 作者机构：
  
  中国科学院上海应用物理研究所
- 作者简介：
- 基金信息：
  
  国家重点基础研究发展计划(2010CB934501);国家重大研究计划项目(2007CB936003);中国科学院院长基金特别支持项目(基于先进同步光源的裂变核能材料的前期研究,批准号:29)资助
- DOI：
  CLC： TG172
- Published：01 May 2011
- 稿件说明：
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[1]郑俊义,余笑寒,刘敏,张继超,王娟.镍基合金受熔融氟化盐腐蚀的同步辐射XRF分析[J].核技术,2011,34(05):336-340.

ZHENG Junyi YU Xiaohan LIU Min ZHANG Jichao WANG Juan. SR X-ray analysis of Ni-based alloys corroded in molten fluoride salt[J]. Nuclear techniques, 2011, 34(5): 336-340.
[1]郑俊义,余笑寒,刘敏,张继超,王娟.镍基合金受熔融氟化盐腐蚀的同步辐射XRF分析[J].核技术,2011,34(05):336-340. DOI：

ZHENG Junyi YU Xiaohan LIU Min ZHANG Jichao WANG Juan. SR X-ray analysis of Ni-based alloys corroded in molten fluoride salt[J]. Nuclear techniques, 2011, 34(5): 336-340. DOI：

摘要

采用浸入法在750℃熔融氟化盐（LiNaKF）中进行Inconel 600、Hastelloy X、Hastelloy c-276镍基高温耐蚀合金的腐蚀实验。利用同步辐射微束X射线荧光分析（μ-XRF）及X射线衍射（XRD）对样品进行了分析测试。μ-XRF结果表明

镍基合金在熔融氟化物中的腐蚀主要为合金元素Cr的流失;XRD结果表明

Hastelloy c-276合金中的钼元素在腐蚀过程中形成Mo

C化合态

该化合态有助于提高镍基合金在熔融氟化物中的耐腐蚀性能。

Abstract

Corrosion test of Ni-based high temperature alloys of Inconel 600

Hastelloy X and Hastelloy c-276 were performed in molten fluoride salt（LiNaKF） at 750℃for up to 320 h.The virgin and corroded samples were imaged by scanning electron microscope

analyzed by synchrotron radiation microbeam X-ray fluorescence（μ-XRF） and characterized by X-ray diffraction（XRD）.Theμ-XRF results show that corrosion of the Ni-based alloy in molten fluoride salt is mainly due to the erosion of alloying element Cr.The XRD results show that the alloying element Mo of Hastelloy c-276 formed the Mo

C structure

which can enhances anti-corrosive performance of the alloy in molten fluoride salt.

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