He ion implantation induced He bubbles and hardness in tungsten
The pure tungsten was implanted with 500 keV helium (He) ions to a fluence of 1.0 × 1017 ions/cm2 at RT and 800 °C. After the implantation, cross-sectional transmission electron microscope (TEM) and nano-indentation measurements were used to investigate the He bubbles and hardness profiles induced b...
Main Authors: | , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Elsevier
2018-05-01
|
Series: | Nuclear Materials and Energy |
Online Access: | http://www.sciencedirect.com/science/article/pii/S2352179117301102 |
id |
doaj-431b6ef4f8634e018b512de4a4351bef |
---|---|
record_format |
Article |
spelling |
doaj-431b6ef4f8634e018b512de4a4351bef2020-11-24T20:53:45ZengElsevierNuclear Materials and Energy2352-17912018-05-0115232236He ion implantation induced He bubbles and hardness in tungstenMinghuan Cui0Tielong Shen1Lilong Pang2Yabin Zhu3Peng Jin4Chao Liu5Xuesong Fang6Zhiguang Wang7Institute of Modern Physics, CAS, Lanzhou 730000, China; Corresponding authors.Institute of Modern Physics, CAS, Lanzhou 730000, China; Corresponding authors.Institute of Modern Physics, CAS, Lanzhou 730000, ChinaInstitute of Modern Physics, CAS, Lanzhou 730000, ChinaInstitute of Modern Physics, CAS, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, ChinaInstitute of Modern Physics, CAS, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, ChinaInstitute of Modern Physics, CAS, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, ChinaInstitute of Modern Physics, CAS, Lanzhou 730000, ChinaThe pure tungsten was implanted with 500 keV helium (He) ions to a fluence of 1.0 × 1017 ions/cm2 at RT and 800 °C. After the implantation, cross-sectional transmission electron microscope (TEM) and nano-indentation measurements were used to investigate the He bubbles and hardness profiles induced by He implantation. Visible He bubbles were observed only in the damage peak region at RT but in the whole damage region at 800 °C. The size of He bubbles at 800 °C increased with increasing depths. With increasing the implantation temperature from RT to 800 °C, the size of He bubbles in the damage peak regions increased. The nano-indentation tests indicated that hardening was induced by He implantation at RT and 800 °C. The implantation induced peak hardness values were the same at both temperatures, but the hardness peaks moved to the surface with increasing temperatures. The formation of He bubbles and the contributions of their distribution and sizes to the hardness were discussed.http://www.sciencedirect.com/science/article/pii/S2352179117301102 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Minghuan Cui Tielong Shen Lilong Pang Yabin Zhu Peng Jin Chao Liu Xuesong Fang Zhiguang Wang |
spellingShingle |
Minghuan Cui Tielong Shen Lilong Pang Yabin Zhu Peng Jin Chao Liu Xuesong Fang Zhiguang Wang He ion implantation induced He bubbles and hardness in tungsten Nuclear Materials and Energy |
author_facet |
Minghuan Cui Tielong Shen Lilong Pang Yabin Zhu Peng Jin Chao Liu Xuesong Fang Zhiguang Wang |
author_sort |
Minghuan Cui |
title |
He ion implantation induced He bubbles and hardness in tungsten |
title_short |
He ion implantation induced He bubbles and hardness in tungsten |
title_full |
He ion implantation induced He bubbles and hardness in tungsten |
title_fullStr |
He ion implantation induced He bubbles and hardness in tungsten |
title_full_unstemmed |
He ion implantation induced He bubbles and hardness in tungsten |
title_sort |
he ion implantation induced he bubbles and hardness in tungsten |
publisher |
Elsevier |
series |
Nuclear Materials and Energy |
issn |
2352-1791 |
publishDate |
2018-05-01 |
description |
The pure tungsten was implanted with 500 keV helium (He) ions to a fluence of 1.0 × 1017 ions/cm2 at RT and 800 °C. After the implantation, cross-sectional transmission electron microscope (TEM) and nano-indentation measurements were used to investigate the He bubbles and hardness profiles induced by He implantation. Visible He bubbles were observed only in the damage peak region at RT but in the whole damage region at 800 °C. The size of He bubbles at 800 °C increased with increasing depths. With increasing the implantation temperature from RT to 800 °C, the size of He bubbles in the damage peak regions increased. The nano-indentation tests indicated that hardening was induced by He implantation at RT and 800 °C. The implantation induced peak hardness values were the same at both temperatures, but the hardness peaks moved to the surface with increasing temperatures. The formation of He bubbles and the contributions of their distribution and sizes to the hardness were discussed. |
url |
http://www.sciencedirect.com/science/article/pii/S2352179117301102 |
work_keys_str_mv |
AT minghuancui heionimplantationinducedhebubblesandhardnessintungsten AT tielongshen heionimplantationinducedhebubblesandhardnessintungsten AT lilongpang heionimplantationinducedhebubblesandhardnessintungsten AT yabinzhu heionimplantationinducedhebubblesandhardnessintungsten AT pengjin heionimplantationinducedhebubblesandhardnessintungsten AT chaoliu heionimplantationinducedhebubblesandhardnessintungsten AT xuesongfang heionimplantationinducedhebubblesandhardnessintungsten AT zhiguangwang heionimplantationinducedhebubblesandhardnessintungsten |
_version_ |
1716796225263501312 |