Impact analysis of the thermal mechanical coupling characteristics of graphite morphologies during laser cladding of gray cast iron

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• 作者：Peng Yi^a ; ^{yipupc@gmail.com} ; Yancong Liu^a ; ^b ; Changfeng Fan^c ; Xianghua Zhan^a ; Pengyun Xu^d ; Tuo Liu^a
• 关键词：Laser cladding ; Cast iron ; Graphite phase ; Stress field ; Crack
• 刊名：Optics & Laser Technology
• 出版年：2017
• 出版时间：1 May 2017
• 年：2017
• 卷：90
• 期：Complete
• 页码：52-64
• 全文大小：2126 K
• 卷排序：90

文摘

Cladding experiment and numerical experiment on thermodynamic coupling are carried out. Different micro model of graphite-environment phase is established. The relationship between thermal stress and micro cracks at tip of graphite are studied. Influencing rule of morphological difference on local stress concentration is obtained.