It has been 4 yrs since I have had any Australorpe chicks and I don't remember them having white wing feathers. I know they start off with some white on them, just not having all white wing feathers. Is this normal?
That is absolutely how they should look. The white in the face and wing tips is a good indicator you'll get an awesome pure black bird when mature. As OEG said, the chick will go through many moults before it is mature and will eventually drop the white feathers. They are very pretty.