Different effects of pure hydrogen vs. hydrogen/natural gas mixture on fracture toughness degradation of two carbon steels
Different effects of pure hydrogen vs. hydrogen/natural gas mixture on fracture toughness degradation of two carbon steels
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纯氢气与氢气/天然气混合物对两种碳钢断裂韧性退化的不同影响
DOI：
10.1016/j.matlet.2021.129924
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发表时间：
2021-04
影响因子：
3
通讯作者：
Chaohua Gu
中科院分区：
文献类型：
--
作者：
Juan Shang;Zhizhong Wang;Weifeng Chen;Haotian Wei;Jinyang Zheng;Zhengli Hua;Lin Zhang;Chaohua Gu
研究了X80和GB 20 #管线钢在氢气和天然气/氢气混合气体中的断裂韧性。首次发现纯氢和天然气/氢混合气对两种材料的断裂韧性有不同的劣化作用。与天然气和混合气相比，纯氢气对X80的断裂韧性影响最大。而对于GB 20 #，混合气中的断裂韧性退化最为严重，约为氢气中的2.5倍。断口形貌观察表明，X80在天然气中由韧性韧窝断裂演变为含氢环境中的脆性准解理断裂，而GB20#在较低压力下始终为韧性韧窝断裂，断裂韧性较高，劣化程度较轻。
This work aims to investigate the fracture toughness of X80 and GB20# pipeline steel in hydrogen and actual natural gas/hydrogen mixture. It is found for the first time that pure hydrogen and natural gas/hydrogen mixture had different deteriorating effects on the fracture toughness of the two kinds of materials. The fracture toughness of X80 deteriorated the most in pure hydrogen gas compared with that in natural gas and the mixture. However, for GB20#, the fracture toughness degradation in the mixture was the most serious, approximately 2.5 times of that in hydrogen. The fracture surfaces observation showed that X80 evolved from ductile dimple fracture in natural gas to brittle quasi-cleavage fracture in hydrogen-containing environment, while GB20# in lower pressure was always ductile dimple fracture, resulting in its higher fracture toughness and slighter deterioration.
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影响因子：
5.3
作者：
Pankaj Kumar;Akhilendra Singh
通讯作者：
Pankaj Kumar;Akhilendra Singh
影响因子：
7.2
作者：
B. Meng;C. Gu;Lin Zhang;Chengshuang Zhou;Xiong-Ying Li;Yongzhi Zhao;Jinyang Zheng;Xingyang Chen;Yongxiang Han
通讯作者：
B. Meng;C. Gu;Lin Zhang;Chengshuang Zhou;Xiong-Ying Li;Yongzhi Zhao;Jinyang Zheng;Xingyang Chen;Yongxiang Han
影响因子：
9.4
作者：
Nagumo, Michihiko;Takai, Kenichi
通讯作者：
Takai, Kenichi
影响因子：
6
作者：
Shang Juan;Weifeng Chen;Jinyang Zheng;Z. Hua;Lin Zhang;Chengshuang Zhou;C. Gu
通讯作者：
Shang Juan;Weifeng Chen;Jinyang Zheng;Z. Hua;Lin Zhang;Chengshuang Zhou;C. Gu
DOI：
10.1016/j.msea.2020.139114
发表时间：
2020-04-20
影响因子：
6.4
作者：
Thanh Tuan Nguyen;Park, Jong Seo;Beak, Un Bong
通讯作者：
Beak, Un Bong