0.7Hf0.3Co;合金;氦泡;氦熱釋放譜"/> 0.7Hf0.3Co合金中引入氦,利用透鏡觀(guān)察氦泡形貌隨貯存時(shí)間的演化,結(jié)果表明Zr0.7Hf0.3Co中氦泡平均尺寸比ZrCo更小,隨貯存時(shí)間的延長(zhǎng),兩者均觀(guān)察到氦泡的合并與長(zhǎng)大。利用氦熱釋放譜研究貯存時(shí)間對(duì)氦熱釋放行為的影響,結(jié)果表明當(dāng)貯存時(shí)間達(dá)到105天時(shí),ZrCo中氦的總釋放量和在較低溫度下的釋放分?jǐn)?shù)均減少；而Zr0.7Hf0.3Co合金在貯存的175天內(nèi),較低溫度下釋放分?jǐn)?shù)逐漸增加,總釋放量無(wú)明顯變化,這表明Zr0.7Hf0.3Co比ZrCo具有更優(yōu)異的固氦性能。"/>

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ZrCo和Zr0.7Hf0.3Co合金中氦泡演化和氦熱釋放研究
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表面物理與化學(xué)重點(diǎn)實(shí)驗(yàn)室,表面物理與化學(xué)重點(diǎn)實(shí)驗(yàn)室,表面物理與化學(xué)重點(diǎn)實(shí)驗(yàn)室

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中圖分類(lèi)號(hào):

TG146.4;TL64

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國(guó)家自然科學(xué)基金資助(項(xiàng)目號(hào)11105127)


Investigation on Helium Evolution and Thermal Helium Release Behavior in ZrCo and Zr0.7Hf0.3Co Alloys
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Science and Technology on Surface Physics and Chemistry Laboratory,Science and Technology on Surface Physics and Chemistry Laboratory,Science and Technology on Surface Physics and Chemistry Laboratory

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    摘要:

    采用混合能量離子注入法在ZrCo及Zr0.7Hf0.3Co合金中引入氦,利用透鏡觀(guān)察氦泡形貌隨貯存時(shí)間的演化,結(jié)果表明Zr0.7Hf0.3Co中氦泡平均尺寸比ZrCo更小,隨貯存時(shí)間的延長(zhǎng),兩者均觀(guān)察到氦泡的合并與長(zhǎng)大。利用氦熱釋放譜研究貯存時(shí)間對(duì)氦熱釋放行為的影響,結(jié)果表明當(dāng)貯存時(shí)間達(dá)到105天時(shí),ZrCo中氦的總釋放量和在較低溫度下的釋放分?jǐn)?shù)均減少；而Zr0.7Hf0.3Co合金在貯存的175天內(nèi),較低溫度下釋放分?jǐn)?shù)逐漸增加,總釋放量無(wú)明顯變化,這表明Zr0.7Hf0.3Co比ZrCo具有更優(yōu)異的固氦性能。

    Abstract:

    Helium was introduced into ZrCo and Zr0.7Hf0.3Co alloys by mixed energy ion implantation. The evolution of helium bubble morphology with storage time was observed by Transmission Electron Microscope (TEM). Results showed that the average size of helium bubbles in Zr0.7Hf0.3Co alloy was smaller than that of ZrCo and both of them were observed in the coalescence and growth of helium bubbles with storage time increasing. The effect of storage time on the thermal helium desorption behavior was investigated by Thermal Desorption Spectroscopy (TDS). Results showed that in ZrCo alloy the helium release fraction at lower temperature range decreased sharply and the total helium desorption capacity decreased with the storage time reaching 105 days. While in the case of Zr0.7Hf0.3Co, the helium release fraction at lower temperature range gradually increased and the total desorption capacity of helium was almost constant during the storage period of 175 days. This indicated that Zr0.7Hf0.3Co alloy had more superior ability to contain helium than ZrCo alloy.

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彭麗霞,賴(lài)新春,蔣春麗. ZrCo和Zr0.7Hf0.3Co合金中氦泡演化和氦熱釋放研究[J].稀有金屬材料與工程,2018,47(9):2749~2754.[Lixia Peng, Xinchun Lai, Chunli Jiang. Investigation on Helium Evolution and Thermal Helium Release Behavior in ZrCo and Zr0.7Hf0.3Co Alloys[J]. Rare Metal Materials and Engineering,2018,47(9):2749~2754.]
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  • 收稿日期:2016-10-26
  • 最后修改日期:2016-11-16
  • 錄用日期:2016-12-02
  • 在線(xiàn)發(fā)布日期: 2018-11-01
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