Methods for Detection of Subsurface Damage: A Review

• Published in: Chinese journal of mechanical engineering 2018-12, Vol.31 (1), p.13-26, Article 41
• Main Authors: Yin, Jing-fei, Bai, Qian, Zhang, Bi
• Format: Article
• Language: English
• Subjects: Brittle materials; Brittleness; Damage detection; Electrical Machines and Networks; Electronics and Microelectronics; Engineering; Engineering Thermodynamics; Galling; Heat and Mass Transfer; Instrumentation; Machines; Machining; Manufacturing; Mechanical Engineering; Nondestructive testing; Optical microscopy; overview; Physical properties; Power Electronics; Processes; Review Articles; Spatial distribution; Theoretical and Applied Mechanics
• ISSN: 1000-9345; 2192-8258
• DOI: 10.1186/s10033-018-0229-2

Subsurface damage is easily induced in machining of hard and brittle materials because of their particular mechanical and physical properties. It is detrimental to the strength, performance and lifetime of a machined part. To manufacture a high quality part, it is necessary to detect and remove the machining induced subsurface damage by the subsequent processes. However, subsurface damage is often covered with a smearing layer generated in a machining process, it is rather difficult to directly observe and detect by optical microscopy. An efficient detection of subsurface damage directly leads to quality improvement and time saving for machining of hard and brittle materials. This paper presents a review of the methods for detection of subsurface damage, both destructive and non-destructive. Although more reliable, destructive methods are typically time-consuming and confined to local damage information. Non-destructive methods usually suffer from uncertainty factors, but may provide global information on subsurface damage distribution. These methods are promising because they can provide a capacity of rapid scan and detection of subsurface damage in spatial distribution.