| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8031511 | Surface and Coatings Technology | 2012 | 10 Pages |
Abstract
⺠Surface acoustic waves can be used to determine the hardening depth of steels non-destructively. ⺠The hardened layer has a lower acoustic velocity than the non-hardened steel. ⺠This effect depends on the steel grade and is in the range from 45 to 70 m/s. ⺠A laser-acoustic hand-held probe was developed to measure the wave velocity. ⺠Hardening depth and surface hardness could be determined with an uncertainty of lower than 5%.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Dieter Schneider, Rainer Hofmann, Thomas Schwarz, Thomas Grosser, Eckehard Hensel,