Effect of solution and artificial aging heat treatment on the hardness, friction and wear properties of laser cladding and roll-formed 18Ni300 materials
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Fig. 1.
Microscopic morphology of 18Ni300 powder
Fig. 2.
(a) schematic diagram of the experimental design path scheme; (b) heat treatment scheme
Fig. 3.
Macroscopic morphology of the cladding layer
Fig. 4.
Microstructure of cladding layer before and after heat treatment
Fig. 5.
XRD diffraction pattern of the cladding layer before and after heat treatment
Fig. 6.
Hardness plots of an 18Ni300 cladding layer fabricated by laser cladding before and after heat treatment and 18Ni300 material produced by rolling: (a) hardness curve; (b) average microhardness
Fig. 7.
Friction coefficients of 18Ni300 cladding layer manufactured by laser cladding and 18Ni300 material produced by rolling before and after heat treatment: (a) coefficient of friction; (b) average coefficient of friction
Fig. 8.
Wear 3D profile morphology and wear profile of the material: (a)18Ni300 cladding layer produced by laser cladding after heat treatment; (b)18Ni300 cladding layer produced by laser cladding; (c)18Ni300 material produced by rolling after heat treatment; (d)18Ni300 material produced by rolling
Fig. 9.
Wear rate of 18Ni300 cladding layer fabricated by laser cladding and 18Ni300 material produced by rolling before and after heat treatment
Fig. 10.
Abrasion morphology and EDS results after friction and wear experiments: (a)18Ni300 material produced by rolling; (b)18Ni300 material produced by rolling after heat treatment; (c)18Ni300 cladding layer produced by laser cladding; (d)18Ni300 cladding layer produced by laser cladding after heat treatment
Fig. 11.
SEM morphology of the abraded surface after the friction experiment: (a) 18Ni300 material produced by rolling; (b) 18Ni300 material produced by rolling after heat treatment; (c) 18Ni300 cladding layer produced by laser cladding; (d) 18Ni300 cladding layer produced by laser cladding after heat treatment.