文章信息/Info

Title:

Review on Hydrogen Microstructure Interaction in Metals

作者:

解德剛; 李蒙; 單智偉

西安交通大學(xué) 金屬強(qiáng)度國家重點(diǎn)實(shí)驗(yàn)室，陜西 西安 710049

Author(s):

XIE Degang;  LI Meng;  SHAN Zhiwei

State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China

關(guān)鍵詞:

氫脆; 氫損傷; 原位透射電鏡; 納米力學(xué); 位錯(cuò); 空位

Keywords:

hydrogen embrittlement;  hydrogen damage;  in situ TEM;  nanomechanics;  dislocation;  vacancy

DOI:

10.7502/j.issn.1674-3962.2018.03.09

文獻(xiàn)標(biāo)志碼:

A

摘要:

許多重要的金屬及其合金在冶煉、服役過程中常由于吸收氫而導(dǎo)致其力學(xué)性能和抗腐蝕性能的下降，這些性能下降嚴(yán)重威脅著金屬材料在機(jī)械制造業(yè)、基礎(chǔ)設(shè)施行業(yè)和能源行業(yè)中服役的安全。氫對(duì)金屬材料的影響主要體現(xiàn)為氫脆和氫損傷兩個(gè)方面，提高材料抗氫性能的關(guān)鍵及前提在于理解氫與常見材料微觀缺陷的交互作用。近些年來原位透射電鏡技術(shù)、定量納米力學(xué)測試技術(shù)、原子探針技術(shù)等實(shí)驗(yàn)手段的快速發(fā)展極大地促進(jìn)了氫脆/氫損傷微觀機(jī)理的研究。簡要綜述了氫脆/氫損傷微觀機(jī)理研究領(lǐng)域的研究進(jìn)展，重點(diǎn)關(guān)注了氫對(duì)空位、位錯(cuò)、界面等材料微觀缺陷行為的影響。

Abstract:

The mechanical property and corrosion resistance of metals are often degraded by hydrogen absorption during metal production and environmental exposure. The material degradation induced by hydrogen greatly endangers the performance and safety of metals for applications in mechanical manufacturing, infrastructures and energy industries. Hydrogen embrittlement and hydrogen damage are two major types of hydrogen effects. The material design and protection to improve anti�瞙ydrogen performance shall be based on the knowledge of how hydrogen interacts with typical microstructural defects in materials. In recent years, the investigation into microscopic mechanisms in hydrogen embrittlement/damage has been sped up by the instrumental advancement in in�瞫itu transmission electron microscopy, quantitative nanomechanical testing, atom probe tomography etc. In this review, we will introduce the mechanistic progress of research in hydrogen embrittlement/damage, and highlight the hydrogen impact on the behavior of basic microstructural defects such as vacancy, dislocation, interface etc.