Study on the Microstructure of Vanadium-Modified Tungsten High-Speed Steel-Coded SAE-AISI T1 Steel

Table 1

The chemical composition of investigating steel (as solidified).

Steel no.	Chemical composition, wt. %
	C	Cr	W	V	Mo	Si	Fe
Standard T1 high-speed tool steel
T1 high speed	0.78	4.15	17.95	1.1	0.48	0.19	Balance
Vanadium-modified T1 high-speed tool steel
2V-13W	0.753	3.75	13.2	2.1	0.5	0.20	Balance
3V-8W	0.748	3.99	7.95	2.96	0.54	0.22	Balance
4V-3W	0.753	4.02	2.96	3.95	0.49	0.18	Balance
Vanadium with extra carbon-modified T1 high-speed tool steel
2V-13W-HC	0.985	4.04	12.96	1.97	0.43	0.23	Balance
3V-8W-HC	1.22	3.89	8.06	2.88	0.51	0.17	Balance
4V-3W-HC	1.455	3.95	2.99	3.92	0.50	0.21	Balance