Characterization of Metal Magnetic Memory of Thermal Damage Correlated with Initial Cumulative Fatigue Damage for Laser Cladding Remanufacturing Technology

Abstract:

Laser cladding act as a remanufacturing technology used more and more but the study of the fatigue properties of such products falls relatively behind. To work out the influence fatigue damage and thermal damage have on the fatigue life of laser cladding remanufactured products, this paper deals with the study of the characteristic of metal magnetic memory (MMM) signals of components experienced with fatigue test and a succeeding laser surface burning. The MMM signals was acquired for three times, that is before fatigue test, after fatigue and after laser treatment, respectively. Statistic investigation of the experiment result showed that the magnetic signal was closely related to the state of fatigue damage and thermal damage of the specimen. Based on such result, it is expected to quantify the study by statistical analysis of large samples so as to find a correlationship with the last fatigue life.

• Periodical: Key Engineering Materials (Volumes 525-526)
• Pages: 77-80
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.525-526.77
• Online since: November 2012
• Authors: C. Zeng, W. Tian, L. Hua
• Keywords: Laser Cladding, Metal Magnetic Memory, Remanufacturing, Thermal Damage

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