Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5356749 | Applied Surface Science | 2012 | 6 Pages |
Abstract
⺠The crack propagation behavior of TiN coating after laser thermal shock experiment was observed by using FIB and TEM. ⺠Intercolumnar cracks between TiN columnar grains were predominant cracking mode after laser thermal shock. ⺠Cracks were propagated from the coating surface to the substrate at low laser pulse energy and cracks were originated at coating-substrate interface at high laser pulse energy. ⺠The cracks from the interface spread out transversely through the weak region of the columnar grains by repetitive laser shock.
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Authors
Youngkue Choi, Seol Jeon, Min-seok Jeon, Hyun-Gyoo Shin, Ho Hwan Chun, Youn-seoung Lee, Heesoo Lee,