Cracking sensitivity on laser cladding inconel 738 on directionally solidified Ni-base superalloy

Hangkong Cailiao Xuebao/Journal of Aeronautical Materials

Volumn 25, Issue 2, 2005, Pages 26-31

  Sun, Hong Qing ^a   Zhong, Min Lin ^a   Liu, Wen Jin ^a   He, Jin Jiang ^a   Li, Xiao Li ^a   Zhu, Xiao Feng ^a  

^a TSINGHUA UNIVERSITY   (China)

Author keywords

Directional solidification; Laser cladding; Ni base superalloy; Thermal cracking

Indexed keywords

CARBON DIOXIDE LASERS; CLADDING (COATING); COMPOSITION; CRACKS; FRACTOGRAPHY; LASER APPLICATIONS; NICKEL ALLOYS; OPTICAL MICROSCOPY; POWDER COATINGS; POWDER METALS; SCANNING ELECTRON MICROSCOPY; SOLIDIFICATION; STRENGTHENING (METAL); TURBOMACHINE BLADES; X RAY DIFFRACTION ANALYSIS;

CRACKING SENSITIVITY; DIRECTIONAL SOLIDIFICATION; HEAT INPUT CONTROL; LASER CLADDING; NI-BASED SUPERALLOY; THERMAL CRACKING; TURBINE BLADES;

SUPERALLOYS;

EID: 17944364952     PISSN: 10055053     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (9)

1. OJO O A, RICHARDS N L, CHATURVEDI M C. Contribution of constitutional liquation of gamma prime precipitate to weld HAZ cracking of cast Inconel 738 superalloy [J]. Scripta Materialia, 2004, 50: 641-646.
2. HAAFKENS M H, MATTHEY J H G. A new approach to the weldability of Nickel-base as-cast and powder metallurgy superalloys [J]. Welding Journal. 1982, 11: 25-30.
3. GAUMANN M, HENRY S, CLETON F, et al. Epitaxial laser metal forming: analysis of microstructure formation [J]. Materials Science and Engineering, 1999, A271: 232-241.
4. KATHURIA Y P. Some aspects of laser surface cladding in the turbine industry [J]. Surface and Coatings Technology, 2000, 132: 262-269.
5. GANDY D W, FREDERICK G J, PETERSON A J, et al. Development of a laser-based/high strength weld filler process to extend repair limits on IN-738 gas turbine blades [A]. Fourth International EPRI Conference [C]. 2000. 7-9.
6. SEXTON L, LAVIN S, BYRNE G, et al. Laser cladding of aerospace materials [J]. Journal of Materials Processing Technology, 2002, 122: 63-68.