当前位置: X-MOL 学术J. Am. Ceram. Soc. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Micromechanics of Machining and Wear in Hard and Brittle Materials
Journal of the American Ceramic Society ( IF 3.9 ) Pub Date : 2020-11-03 , DOI: 10.1111/jace.17502
Brian R Lawn 1 , Oscar Borrero-Lopez 2 , Han Huang 3 , Yu Zhang 4
Affiliation  

Hard and brittle solids with covalent/ionic bonding are used in a wide range of modern‐day manufacturing technologies. Optimization of a shaping process can shorten manufacturing time and cost of component production, and at the same time extend component longevity. The same process can contribute to wear and fatigue degradation in service. Educated development of advanced finishing protocols for this class of solids requires a comprehensive understanding of damage mechanisms at small‐scale contacts from a materials perspective. The basic science of attendant deformation and removal modes in contact events is here analyzed and discussed in the context of brittle and ductile machining and severe and mild wear. Essentials of brittle–ductile transitions in micro‐ and nano‐indentation fields are outlined, with distinctions between blunt and sharp contacts and axial and sliding loading. The central role of microstructure in material removal modes is highlighted. Pathways to future research—experimental, analytical, and computational—are indicated.

中文翻译:

硬脆材料加工与磨损的微观力学

具有共价键/离子键的硬脆固体广泛用于现代制造技术。成型工艺的优化可以缩短部件生产的制造时间和成本,同时延长部件寿命。相同的过程会导致使用中的磨损和疲劳退化。此类固体的高级精加工协议的教育开发需要从材料的角度全面了解小规模接触的损伤机制。此处在脆性和韧性加工以及严重和轻度磨损的背景下分析和讨论了接触事件中伴随的变形和移除模式的基础科学。概述了微压痕和纳米压痕领域中脆-韧转变的要点,钝接触和锐接触以及轴向和滑动载荷之间的区别。显微结构在材料去除模式中的核心作用得到强调。指出了未来研究的途径——实验、分析和计算。
更新日期:2020-11-03
down
wechat
bug