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