[1]郭涛,庞晓露,乔利杰.硬质膜层开裂致韧性基体损伤研究进展[J].中国材料进展,2019,(05):480-488.[doi:10.7502/j.issn.1674-3962.2019.05.09]
GUO Tao,PANG Xiaolu,QIAO Lijie.Research Progress on Film Induced Cracking of Ductile Substrates[J].MATERIALS CHINA,2019,(05):480-488.[doi:10.7502/j.issn.1674-3962.2019.05.09]
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硬质膜层开裂致韧性基体损伤研究进展(
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]
- 卷:
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- 期数:
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2019年第05期
- 页码:
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480-488
- 栏目:
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前沿综述
- 出版日期:
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2019-05-31
文章信息/Info
- Title:
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Research Progress on Film Induced Cracking of Ductile Substrates
- 作者:
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郭涛1; 2; 庞晓露1; 2; 乔利杰1; 3
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（1.北京科技大学 北京材料基因工程高精尖创新中心，北京 100083）（2.北京科技大学材料科学与工程学院，北京 100083）(3.北京科技大学 腐蚀与防护中心，北京 100083）
- Author(s):
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GUO Tao1; 2; PANG Xiaolu1; 2; QIAO Lijie1; 3
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(1.Beijing Advanced Innovation Center for Material Genetic Engineering, University ofScience and Technology Beijing, Beijing 100083, China)(2.School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China)(3.Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China)
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- 关键词:
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硬质膜层; 韧性基体; 膜致开裂; 脆断
- Keywords:
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brittle films; ductile substrates; film induced cracking; brittle fracture
- DOI:
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10.7502/j.issn.1674-3962.2019.05.09
- 文献标志码:
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A
- 摘要:
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一直以来，硬质膜层被广泛地应用于改善金属基体表面性能，保护其不受恶劣环境的影响，以达到延长其服役寿命的目的。但是，研究发现硬质膜层的开裂会导致韧性金属基体的开裂，这将严重威胁到金属承载结构件的安全。因而，有必要了解、认识其规律,并揭示损伤机制，为制定相应的解决方案提供依据。综述了膜致韧性基体开裂的来源、机理以及相应的可行解决措施。脆性膜层与韧性基体的短程交互作用以及脆性膜层的开裂所提供的快速运动的裂纹是导致韧性基体低应变下脆性开裂的关键原因。降低硬质膜层开裂的可能性或裂纹在膜层中的运动速度以及减少膜与基体之间的不匹配，有助于减缓膜致韧性基体开裂这一现象的发生。
- Abstract:
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Brittle films (or coatings) are used to protect ductile metal substrates from damage induced by the harsh environments, thus increasing their service life. However, the fracture of brittle films can cause the cracking of ductile metal substrates, which will seriously threaten the safety of metal bearing structures. Thus, it is necessary to understand the nature of this phenomenon and build the related countermeasures. In this review, we will introduce the origin, mechanism and related countermeasures of this phenomenon “film induced cracking of substrates”. The combination of short range coatingsubstrate interaction and fracture of coating inhibit the local plastic deformation of ductile substrate near interface, causing their cleavage cracking. Lowering the mismatch between film and substrate, the fracture probability and the crack velocity in films contribute to preventing the occurrence of this phenomenon.
备注/Memo
- 备注/Memo:
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基金项目：北京市科技新星计划支持项目(Z171100001117075)；国家自然科学基金资助项目 (51771025, 51431004)
第一作者：郭 涛，男，1990年生，博士后，Email: taoguo@ustb.edu.cn
通讯作者：庞晓露，男，1981年生，教授，博士生导师, Email: pangxl@mater.ustb.edu.cn
庞晓露：男，1981年生，北京科技大学教授、博士生导师。曾获霍英东基金、北京市科技新星等奖励和荣誉称号。主要从事金属材料表面涂层的力学行为研究，和课题组成员一起在国内外最早提出了膜致韧性基体脆性开裂理论并揭示基体开裂的机制。近五年以第一/通讯作者在该领域发表SCI论文33篇，其中TOP期刊论文共计17篇，包括Acta Materialia, Corrosion Science等；累计发表SCI论文79篇，他引1200余次，申请专利29项。
更新日期/Last Update:
2019-06-10