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真空熔鑄槽型W/CuCrZr復(fù)合板界面特征研究
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1.中國科學(xué)技術(shù)大學(xué)中國科學(xué)院材料力學(xué)行為和設(shè)計重點實驗室;2.中國礦業(yè)大學(xué)力學(xué)與土木工程學(xué)院力學(xué)與工程科學(xué)系

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國家自然科學(xué)基金（No.51874267,12072363）；中央高?；究蒲袠I(yè)務(wù)費專項資金(WK2480000008, WK2320000049),安徽省科技重大專項(202003a05020035)。


Study on vacuum melting and casting of tungsten and copper with dovetail groove structure
Author:
Affiliation:

1.CAS Key Laboratory of Mechanical Behavior and Design of Materials,University of Science and Technology of China;2.School of Mechanics and Civil Engineering, China University of Mining and Technology

Fund Project:

國家自然科學(xué)基金（No.51874267,12072363）；中央高?；究蒲袠I(yè)務(wù)費專項資金(WK2480000008, WK2320000049),安徽省科技重大專項(202003a05020035)。

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    摘要:

    為了獲得高質(zhì)量的W/CuCrZr復(fù)合材料，采用真空熔鑄法制備了具有燕尾槽型結(jié)構(gòu)的W/CuCrZr復(fù)合板材。通過光學(xué)顯微鏡、掃描電鏡及元素能譜分析、顯微硬度儀等設(shè)備，系統(tǒng)分析了W/CuCrZr復(fù)合板結(jié)合界面的微觀結(jié)構(gòu)特征及力學(xué)性能。研究結(jié)果表明：在真空度為10-4Pa，加熱溫度為1100~1200℃真空條件下熔鑄制備的W/CuCrZr復(fù)合材料，結(jié)合界面以平直結(jié)構(gòu)特征為主，界面結(jié)合緊密，無明顯的缺陷生成。在結(jié)合界面處，元素發(fā)生明顯的互擴散現(xiàn)象，并有明顯的帶狀熔融擴散層生成，擴散層寬度約為6~8μm。W/CuCrZr復(fù)合板鎢側(cè)的維氏硬度較母材有所提高，而CuCrZr側(cè)的維氏硬度較母材有所降低。

    Abstract:

    In order to obtain high quality W/CuCrZr composites, the W/CuCrZr composite plates with dovetail groove structure were fabricated by vacuum melting and casting. The microstructure characteristics and mechanical properties of W/CuCrZr joining interface were systematically analyzed by optical microscopy, scanning electron microscopy coupled with elemtental analysis, hardness tester and other equipment. The results show that the joining interface of W/CuCrZr composite prepared by melting and casting under vacuum conditions of 10-4 Pa and heating temperature of 1100~1200℃ presents flat and straight structure, which is tightly bonded without obvious defects. At the joining interface, the phenomenon of elemental interdiffusion occurred and formed a banded melting diffusion layer with the width of about 6~8μm. The Vickers hardness on the tungsten side of the W/CuCrZr composite plate is improved compared with the base material，while the Vickers hardness on CuCrZr side is lower than that of the base metal.

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引用本文

孫玉玲,馬宏昊,沈兆武,羅寧.真空熔鑄槽型W/CuCrZr復(fù)合板界面特征研究[J].稀有金屬材料與工程,2023,52(8):2844~2850.[SUN Yuling, MA Honghao, SHEN Zhaowu, LUO Ning. Study on vacuum melting and casting of tungsten and copper with dovetail groove structure[J]. Rare Metal Materials and Engineering,2023,52(8):2844~2850.]
DOI：10.12442/j. issn.1002-185X.20220631

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  • 收稿日期:2022-08-03
  • 最后修改日期:2022-10-11
  • 錄用日期:2022-10-19
  • 在線發(fā)布日期: 2023-08-28
  • 出版日期: 2023-08-24