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四點彎曲法測量鎢材料韌脆轉變溫度及其與其他測試方法的比較研究
作者:
作者單位:

1.安徽大學物質科學與信息技術研究院;2.中國科學院合肥物質科學研究院等離子體物理研究所

作者簡介:

通訊作者:

中圖分類號:

TG146.4+11

基金項目:

國家重點研發(fā)磁約束核聚變能發(fā)展研究專項：(項目號2017YFE0300604)


Measurement of ductile-brittle transition temperature of Tungsten materials by four-point bending method and its comparison with other methods
Author:
Affiliation:

1.Institute of Physical Science and Information Technology,Anhui University;2.Institute of Plasma Physics,HFIPS,Chinese Academy of Sciences

Fund Project:

The National Key Technologies R&D Program of China

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    摘要:

    針對聚變裝置中鎢材料的性能評價問題,采用四點彎曲試驗(4PBT)方法對鎢材料的韌脆轉變溫度(DBTT)進行了測試和分析。首先,基于對四點彎曲過程的應變率和強度隨溫度變化的分析獲得了商用軋制純鎢的DBTT。結果表明,用標準四點彎曲法測得的工業(yè)軋制純鎢的DBTT值在150℃以下,低于相同材料的拉伸試驗和沖擊試驗的測量值。然后對比不同加載速率的4PBT和拉伸試驗的結果,證實了不同的DBTT測試方法的加載速率依賴性。最后,對測試方法影響DBTT測量的原因進行了分析和討論。

    Abstract:

    For performance evaluation of tungsten materials in fusion device, four-point bending test (4PBT) was carried out to analyse the ductile-brittle transition temperature (DBTT) of tungsten material. DBTT of industrial rolling pure tungsten measured by standard four-point bending method is under 150 ℃, basing on analysis to the change of strain rate and strength with temperature. This result is lower than the measured value of the tensile test and impact test. Then the results of 4PBT with different loading rates and tensile test were compared to confirm the loading rate dependence of DBTTs obtained by different test methods. Finally, the reasons for the influence of test methods on DBTT measurement were analyzed and discussed.

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耿祥,羅廣南,王萬景,李強,王紀超,謝春意,黃伶明,陳鎮(zhèn),彭吳擎亮.四點彎曲法測量鎢材料韌脆轉變溫度及其與其他測試方法的比較研究[J].稀有金屬材料與工程,2021,50(11):4089~4094.[Geng Xiang, Luo Guangnan, Wang Wanjing, Li Qiang, Wang Jichao, Xie Chunyi, Huang Lingming, Chen Zheng, Peng Wuqingliang. Measurement of ductile-brittle transition temperature of Tungsten materials by four-point bending method and its comparison with other methods[J]. Rare Metal Materials and Engineering,2021,50(11):4089~4094.]
DOI：10.12442/j. issn.1002-185X.20200902

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  • 收稿日期:2020-11-22
  • 最后修改日期:2021-01-08
  • 錄用日期:2021-02-04
  • 在線發(fā)布日期: 2021-11-30
  • 出版日期: 2021-11-24