Microstructure Formation and Fracturing Characteristics of Grey Cast Iron Repaired Using Laser
The repairing technology based on laser rapid fusion is becoming an important tool for fixing grey cast iron equipment efficiently. A laser repairing protocol was developed using Fe-based alloy powders as material. The microstructure and fracturing feature of the repaired zone (RZ) were analyzed. Th...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/541569 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832563318340976640 |
|---|---|
| author | Peng Yi Pengyun Xu Changfeng Fan Guanghui Yang Dan Liu Yongjun Shi |
| author_facet | Peng Yi Pengyun Xu Changfeng Fan Guanghui Yang Dan Liu Yongjun Shi |
| author_sort | Peng Yi |
| collection | DOAJ |
| description | The repairing technology based on laser rapid fusion is becoming an important tool for fixing grey cast iron equipment efficiently. A laser repairing protocol was developed using Fe-based alloy powders as material. The microstructure and fracturing feature of the repaired zone (RZ) were analyzed. The results showed that regionally organized RZ with good density and reliable metallurgical bond can be achieved by laser repairing. At the bottom of RZ, dendrites existed in similar direction and extended to the secondary RZ, making the grains grow extensively with inheritance with isometric grains closer to the surface substrate. The strength of the grey cast iron base material was maintained by laser repairing. The base material and RZ were combined with robust strength and fracture resistance. The prevention and deflection of cracking process were analyzed using a cracking process model and showed that the overall crack toughness of the materials increased. |
| format | Article |
| id | doaj-art-c633e693db93499eb25e0d627bafb267 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-c633e693db93499eb25e0d627bafb2672025-02-03T01:20:27ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/541569541569Microstructure Formation and Fracturing Characteristics of Grey Cast Iron Repaired Using LaserPeng Yi0Pengyun Xu1Changfeng Fan2Guanghui Yang3Dan Liu4Yongjun Shi5College of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao 266580, ChinaCollege of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao 266580, ChinaCollege of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao 266580, ChinaCollege of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao 266580, ChinaCollege of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao 266580, ChinaCollege of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao 266580, ChinaThe repairing technology based on laser rapid fusion is becoming an important tool for fixing grey cast iron equipment efficiently. A laser repairing protocol was developed using Fe-based alloy powders as material. The microstructure and fracturing feature of the repaired zone (RZ) were analyzed. The results showed that regionally organized RZ with good density and reliable metallurgical bond can be achieved by laser repairing. At the bottom of RZ, dendrites existed in similar direction and extended to the secondary RZ, making the grains grow extensively with inheritance with isometric grains closer to the surface substrate. The strength of the grey cast iron base material was maintained by laser repairing. The base material and RZ were combined with robust strength and fracture resistance. The prevention and deflection of cracking process were analyzed using a cracking process model and showed that the overall crack toughness of the materials increased.http://dx.doi.org/10.1155/2014/541569 |
| spellingShingle | Peng Yi Pengyun Xu Changfeng Fan Guanghui Yang Dan Liu Yongjun Shi Microstructure Formation and Fracturing Characteristics of Grey Cast Iron Repaired Using Laser The Scientific World Journal |
| title | Microstructure Formation and Fracturing Characteristics of Grey Cast Iron Repaired Using Laser |
| title_full | Microstructure Formation and Fracturing Characteristics of Grey Cast Iron Repaired Using Laser |
| title_fullStr | Microstructure Formation and Fracturing Characteristics of Grey Cast Iron Repaired Using Laser |
| title_full_unstemmed | Microstructure Formation and Fracturing Characteristics of Grey Cast Iron Repaired Using Laser |
| title_short | Microstructure Formation and Fracturing Characteristics of Grey Cast Iron Repaired Using Laser |
| title_sort | microstructure formation and fracturing characteristics of grey cast iron repaired using laser |
| url | http://dx.doi.org/10.1155/2014/541569 |
| work_keys_str_mv | AT pengyi microstructureformationandfracturingcharacteristicsofgreycastironrepairedusinglaser AT pengyunxu microstructureformationandfracturingcharacteristicsofgreycastironrepairedusinglaser AT changfengfan microstructureformationandfracturingcharacteristicsofgreycastironrepairedusinglaser AT guanghuiyang microstructureformationandfracturingcharacteristicsofgreycastironrepairedusinglaser AT danliu microstructureformationandfracturingcharacteristicsofgreycastironrepairedusinglaser AT yongjunshi microstructureformationandfracturingcharacteristicsofgreycastironrepairedusinglaser |