Surface Hardening of Ti-15V-3Al-3Cr-3Sn Alloy after Cyclic Hydrogenation and Subsequent Solution Treatment

Table 6

𝐻_𝑆, 𝐻_𝑁, and 𝐻_𝐵 for typical specimens (Vickers hardness measured at the load of 50 gw).

Process designation	𝐻𝑆	𝐻𝑁 (𝜇m)									𝐻𝐶
		50	100	150	200	250	300	350	400	450	𝐻𝑁 (500)
A0	236.9		241.2		226.3		230.4		231.7		234.6
AT3	264.5
AT3L4	409.3	376.2	387.6	378.6	371.4	380.0	356.6	346.5	336.9	345.6	346.1
AT4	301.1		257.2		260.5		250.3		254.2		253.1
B0	179.5		185.3		177.2		164.7		174.3		169.8
BT3	277.9
BT3L4	344.7	364.1	364.7	364.0	357.0	355.6	347.3	338.7	330.4	336.9	331.2
BT4	288.2		219.6		221.2		217.7		213.8		219.8
C0	314.7		318.6		317.4		310.6		317.9		318.2
CT3	330.7
CT3L4	491.1	476.3	467.2	436.8	443.1	438.7	436.5	429.8	432.7	427.3	423.8
CT4	348.1		327.9		322.6		317.4		338.1		326.7