The invention is based on the discovery that if {HEAD ~ an initial thin layer} is deposited from a dilute Cr thiocyanate bath, subsequent thick deposits from a more concentrated, higher rate Cr thiocyanate bath have much better properties of {TAIL ~ cohesion} and surface smoothness 
The invention is based on the discovery that if { HEAD ~ an initial thin layer } is deposited from a dilute Cr thiocyanate bath , subsequent thick deposits from a more concentrated , higher rate Cr thiocyanate bath have much better properties of { TAIL ~ cohesion } and surface smoothness
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH