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He 离子注入引起的高纯钨硬化

崔明焕 王志光 姚存峰 申铁龙 李炳生 庞立龙 金运范 李锦钰 朱亚滨 孙建荣

崔明焕, 王志光, 姚存峰, 申铁龙, 李炳生, 庞立龙, 金运范, 李锦钰, 朱亚滨, 孙建荣. He 离子注入引起的高纯钨硬化[J]. 原子核物理评论, 2013, 30(2): 206-213. doi: 10.11804/NuclPhysRev.30.02.206
引用本文: 崔明焕, 王志光, 姚存峰, 申铁龙, 李炳生, 庞立龙, 金运范, 李锦钰, 朱亚滨, 孙建荣. He 离子注入引起的高纯钨硬化[J]. 原子核物理评论, 2013, 30(2): 206-213. doi: 10.11804/NuclPhysRev.30.02.206
CUI Minghuan, WANG Zhiguang, YAO Cunfeng, SHEN Tielong, LI Bingsheng, PANG Lilong, JIN Yunan, LI Jinyu, ZHU Yabin, SUN Jianrong. Hardening of Tungsten Induced by Helium Implantation[J]. Nuclear Physics Review, 2013, 30(2): 206-213. doi: 10.11804/NuclPhysRev.30.02.206
Citation: CUI Minghuan, WANG Zhiguang, YAO Cunfeng, SHEN Tielong, LI Bingsheng, PANG Lilong, JIN Yunan, LI Jinyu, ZHU Yabin, SUN Jianrong. Hardening of Tungsten Induced by Helium Implantation[J]. Nuclear Physics Review, 2013, 30(2): 206-213. doi: 10.11804/NuclPhysRev.30.02.206

He 离子注入引起的高纯钨硬化

doi: 10.11804/NuclPhysRev.30.02.206

Hardening of Tungsten Induced by Helium Implantation

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出版历程
  • 收稿日期:  1900-01-01
  • 修回日期:  1900-01-01
  • 刊出日期:  2013-06-20

He 离子注入引起的高纯钨硬化

doi: 10.11804/NuclPhysRev.30.02.206

摘要: 完成了不同注量或温度下100 keV 的He 离子注入高纯钨的实验,并利用纳米压痕技术测量了材料的微观力学性能。所有注入样品的纳米硬度值都高于未注入样品的纳米硬度值。对于室温注入样品,随着注量的增加,样品抗弹性变形能力下降;当注量不高于5x1017 ions/cm2 时,钨的纳米硬度峰值随着注量的增加而增加;注量为1x1018 ions/cm2 的钨样品的纳米硬度峰值反而降低。高温注入样品的抗弹性变形能力优于室温注入样品的抗弹性变形能力;随着注入温度的增加,样品的平均纳米硬度值和弹性模量略有下降。分析讨论了He 注入钨硬化和抗弹性形变能力降低的可能原因。Tungsten has been selected as divertor materials in fusion reactors because of its high thermal conductivity,high melting point, low expansion coefficient and high threshold energy for sputtering etc. The paper presents the hardening behaviour of high pure tungsten by 100 keV He+ with different fluences from 5x1016 ions/cm2 to 1x1018ions/cm2 at room temperature, and with fluence of 1x1018 ions/cm2 at higher temperatures (400, 600 and 800 °C). The microscopic mechanical properties of these samples were investigated by nano-indentation technology. The results show that all of the implanted samples harden obviously. The reason for hardening may be that defects of interstitial dislocation loops or dense helium bubbles etc induced by helium implantation obstacle the movement of dislocation. The peak nanohardness of the samples increased with the fluences increasing when the fluence is not more than 5x1017 ions/cm2, while the nano-hardness value of the implanted sample with the fluence of 1x1018 ions/cm2 decreases and the nano-hardness changes little in the region of 50 nm to 200 nm from surface. For all the implanted samples with 1x1018 ions/cm2 at higher temperatures, their nano-hardness values are similar, but show a trend of decrease with increasing temperature.The reason may be the decrease of the defects’ density during implantation at higher temperatures. In addition, the capability of resisting deformation for the implanted tungsten reduces with increasing fluence and increases a little at higher temperatures.

English Abstract

崔明焕, 王志光, 姚存峰, 申铁龙, 李炳生, 庞立龙, 金运范, 李锦钰, 朱亚滨, 孙建荣. He 离子注入引起的高纯钨硬化[J]. 原子核物理评论, 2013, 30(2): 206-213. doi: 10.11804/NuclPhysRev.30.02.206
引用本文: 崔明焕, 王志光, 姚存峰, 申铁龙, 李炳生, 庞立龙, 金运范, 李锦钰, 朱亚滨, 孙建荣. He 离子注入引起的高纯钨硬化[J]. 原子核物理评论, 2013, 30(2): 206-213. doi: 10.11804/NuclPhysRev.30.02.206
CUI Minghuan, WANG Zhiguang, YAO Cunfeng, SHEN Tielong, LI Bingsheng, PANG Lilong, JIN Yunan, LI Jinyu, ZHU Yabin, SUN Jianrong. Hardening of Tungsten Induced by Helium Implantation[J]. Nuclear Physics Review, 2013, 30(2): 206-213. doi: 10.11804/NuclPhysRev.30.02.206
Citation: CUI Minghuan, WANG Zhiguang, YAO Cunfeng, SHEN Tielong, LI Bingsheng, PANG Lilong, JIN Yunan, LI Jinyu, ZHU Yabin, SUN Jianrong. Hardening of Tungsten Induced by Helium Implantation[J]. Nuclear Physics Review, 2013, 30(2): 206-213. doi: 10.11804/NuclPhysRev.30.02.206

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