Study of the effect of heat treatment on the structure and properties of the specimens obtained by the method of direct metal deposition
The effect of heat treatment at temperatures of 550 and 1050 °C on the structure and tribological properties when introducing counterface, strength, and ductility under static loads as well as durability under cyclic bending loads of specimens made of nickel-based metal formed by direct laser deposition material was studied. It is shown that heat treatment increases the wear resistance of specimens produced by emission of large carbide morphology. The mode of thermal processing of specimens obtained by the direct laser deposition material method is proposed, for reduction of structural heterogeneity and improvement of durability under cyclic bending load.
KeywordsDirect laser metal deposition Heat treatment Nickel alloy Microstructure Wear resistance Durability Strength Ductility
Unable to display preview. Download preview PDF.
- 6.Karg M, Ahuja B, Kuryntsev S, Gorunov A, Schmidt M (2014) Processability of high strength aluminium-copper alloys AW-2022 and 2024 by laser beam melting in powder bed. 25th Annual International Solid FreeForm Fabrication Symposium, AustinGoogle Scholar
- 15.Schafrik RE, Ward DD, Groh JR (2001) Application of alloy 718 in GE aircraft engines: past, present and next five years, superalloys 718, 625, 706 and various derivatives. Mater Met Mater Soc 8:1–11Google Scholar
- 16.Bouse G.K., Behrendt M.R (1989) Mechanical properties of Microcast—X alloy 718 fine grain investment castings. Conf: Superalloy 718. Metall Appl Publ: TMS pp. 319–328Google Scholar
- 17.Awasthi R, Limaye PK, Kumar S, Kushwaha RP, Viswanadham CS, Srivastava D, Soni NL, Patel RJ, Dey GK (2015) Wear characteristics of Ni-based hardfacing alloy deposited on stainless steel substrate by laser cladding. Metall Mater Trans A 46(3):1237–1252. doi: 10.1007/s11661-014-2719-x CrossRefGoogle Scholar
- 23.Techel A, Luft A, Muller A, Nowotny S (1995) Production of hard metal-like wear protection coatings by C02 laser cladding. Opt Quant Electron 27:1313–1318Google Scholar
- 24.Awasthi R, Kumar S, Kamlesh C, Vishwanadh B, Kishore R, Viswanadham CS, Srivastava D, Dey GK (2012) Effect of specific energy input on microstructure and mechanical properties of nickel-base intermetallic alloy deposited by laser cladding. Metall Mater Trans A 43(12):4688–4702. doi: 10.1007/s11661-012-1290-6 CrossRefGoogle Scholar