Research Article
The Process of Nanostructuring of Metal (Iron) Matrix in Composite Materials for Directional Control of the Mechanical Properties
Table 2
Macrohardness and characterization of the microstructure of samples obtained by alternating exposures of titanium tetrachloride-methane.
| T, °C | Number of cycles of ALD reactions | HV, kg/mm | Description of microstructures |
| 200 | 1 | 84 | Absence of reaction by XRD, nonuniform film | 2 | 82 | 4 | 150 | 5 | 144 | 6 | 210 |
| 300 | 1 | 80 | Absence of reaction by XRD, nonuniform film | 2 | 63 | 4 | 120 | 5 | 380 | 6 | 465 |
| 400 | 1 | 340 | Uniform fine-grained structure | 2 | 303 | 4 | 690 | 5 | 1302 | 6 | 1280 |
| 450 | 1 | 684 | Uniform fine-grained structure | 2 | 905 | 4 | 1010 | 5 | 1260 | 6 | 1200 |
| 500 | 1 | 204 | The appearance of chlorine excess which is manifested in the nonuniform structure | 2 | 660 | 4 | 785 | 5 | 550 | 6 | 930 |
| 550 | 1 | 340 | Increasing heterogeneity of structure centers | 2 | 280 | 4 | 833 | 5 | 535 | 6 | 650 |
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