Effect of microstructure on tensile properties of electrospark deposition repaired Ni-superalloy

被引：18
作者：
Enrique, Pablo D. [1 ]
Jiao, Zhen [2 ]
Zhou, Norman Y. [1 ]
Toyserkani, Ehsan [1 ]
机构：
[1] Univ Waterloo, 200 Univ Ave W, Waterloo, ON N2L 3G1, Canada
[2] Hays Ind Ltd, 175 Tosyork Dr,Unit 35, Toronto, ON M9L 1X9, Canada
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2018年 / 729卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
Electrospark deposition; Nickel superalloy; Tensile properties; Fracture behaviour; YIELD STRENGTH; LASER; ANISOTROPY; HARDNESS; STEEL;
D O I：
10.1016/j.msea.2018.05.049
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Cavities introduced to Inconel 718 tensile specimens were repaired with the use of electrospark deposition (ESD) and tensile properties of repaired specimens were investigated. Reduced energy input during ESD resulted in a larger number of splat boundaries and greater yield strength recovery during tensile testing. Analysis of the fracture surface showed a trans-splat and inter-splat crack propagation pathway, with splat boundaries exhibiting lower fracture toughness than material within the splats. Changes in crack propagation direction were attributed to grain growth across splat boundaries and brittle secondary phases forming within splats during ESD.
引用
收藏
页码：268 / 275
页数：8
相关论文
共 35 条
[1]   Laser welding of niobium to 410 steel with a nickel interlayer produced by electro spark deposition [J].
Baghjari, Seyed Hamzeh ;
Ghaini, Farshid Malek ;
Shahverdi, Hamid Reza ;
Mapelli, Carlo ;
Barella, Silvia ;
Ripamonti, Dario .
MATERIALS & DESIGN, 2016, 107 :108-116
[2]  
CAHOON JR, 1971, METALL TRANS, V2, P1979
[3]  
Caless RobertH., 1991, MINERALS METALS 136, P375
[4]  
Callister W., 2007, Materials science and engineering: an introduction, V94, P188, DOI DOI 10.1016/0025-5416(87)90343-0
[5]   Effect of pre- and post-weld heat treatment on metallurgical and tensile properties of Inconel 718 alloy butt joints welded using 4 kW Nd:YAG laser [J].
Cao, X. ;
Rivaux, B. ;
Jahazi, M. ;
Cuddy, J. ;
Birur, A. .
JOURNAL OF MATERIALS SCIENCE, 2009, 44 (17) :4557-4571
[6]   Mechanical characterization of a nickel-based superalloy repaired using MicroPlasma and ESD technology [J].
Carofalo, A. ;
Dattoma, V. ;
Nobile, R. ;
Panella, F. W. ;
Alfeo, G. ;
Scialpi, A. ;
Zanon, G. P. .
XXIII ITALIAN GROUP OF FRACTURE MEETING, IGFXXIII, 2015, 109 :312-319
[7]   Characterisations of electrospark deposition Stellite 6 alloy coating on 316L sealed valve used in nuclear power plant [J].
Chen, C. J. ;
Wang, M. C. ;
Wang, D. S. ;
Liang, H. S. ;
Feng, P. .
MATERIALS SCIENCE AND TECHNOLOGY, 2010, 26 (03) :276-280
[8]   STRENGTH-MISMATCH EFFECT ON STEEL WELD HAZ-TOUGHNESS IN CTOD AND CHARPY TESTS [J].
Chiba, Y. ;
Murayama, K. ;
Satoh, S. ;
Miyashiro, K. ;
Ohata, M. ;
Minami, F. .
WELDING IN THE WORLD, 2010, 54 (5-6) :R147-R153
[9]   Mechanical properties of Inconel 718 welds performed by gas tungsten arc welding [J].
Cortes, R. ;
Barragan, E. R. ;
Lopez, V. H. ;
Ambriz, R. R. ;
Jaramillo, D. .
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2018, 94 (9-12) :3949-3961
[10]   Anisotropy of mechanical properties and its correlation with the structure of the stainless steel 316L produced by the SLM method [J].
Deev, A. A. ;
Kuznetcov, P. A. ;
Petrov, S. N. .
LASER ASSISTED NET SHAPE ENGINEERING 9 INTERNATIONAL CONFERENCE ON PHOTONIC TECHNOLOGIES PROCEEDINGS OF THE LANE 2016, 2016, 83 :789-796
1234