Study of Manufacturing Process of Holes in Aeroengine Heat Shield

Table 1

Chemical composition of GH3128 (wt.%).

Ni	Cr	W	Mo	Al	Ti	Fe	B	Zr	Ce
Bal	19.0~22.0	7.5~9.0	7.5~9.0	0.4~0.8	0.4~0.8	1.0	0.005	0.04	0.05