A new procedure for refurbishment of power plant Superalloy 617 by pulsed Nd:YAG laser process
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- 作者：Naser Taheri ; Homam Naffakh-Moosavy ; h.naffakh-moosavy@modares.ac.ir ; Farshid Malek Ghaini
- 关键词：Refurbishment ; Superalloy 617 ; Pulsed Nd ; YAG laser ; Power plant
- 刊名：Optics & Laser Technology
- 出版年：2017
- 出版时间：1 June 2017
- 年：2017
- 卷：91
- 期：Complete
- 页码：71-79
- 全文大小：2574 K
- 卷排序：91
文摘
Size of MZ and PMZ in GTAW are more than 31 and 6 times than pulsed Nd:YAG laser. No Solidification and liquation cracks were identified in laser treated surface. EDS analyses demonstrated the interdendritic chromium and molybdenum segregation. The hardness increased and size of solidified metal reduced in pulse Nd:YAG laser. Pulse Nd:YAG laser can be used as a new technique in rejuvenation of aged Alloy 617.