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

Table 7

Hardening efficiency for typical specimens.

Process designation	𝐻𝑆/HE	𝐻𝐶/HE
A0	236.9	234.6
AT3	264.5/11.7%	—
AT3L4	409.3/72.8%	346.1/47.5%
AT4	301.1/27.1%	253.1/7.9%
B0	179.5	169.8
BT3	277.9/54.8%	—
BT3L4	344.7/92.0%	331.2/95.1%
BT4	288.2/60.6%	219.8/29.4%
C0	314.7	318.2
CT3	330.7/5.1%	—
CT3L4	491.1/56.1%	423.8/33.2%
CT4	348.1/10.6%	326.7/2.7%