Tham khảo tài liệu 'the materials science of coatings and substrates part 7', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Structure 151 Figure 11 Cross section of the chilled side of cast copper upon which copper was elecưodeposited. a The surface was cleaned but not pickled prior to elecữoplating. b The surface was pickled bright-dipped after cleaning. The various zones in b also apply to a . w the base metal X the elecbodeposited copper first layer Y electrodeposited nickel and z electrodeposited copper second layer . Reprinted with permission of McGraw-Hill Inc. 152 Electrodeposition 4 8 12 16 20 24 SAMPLE NUMBER Figure 12 Measured elongation for a series of deposits plated on a rotating 750 rpm 304 stainless steel mandrel from an acid copper sulfate solution containing 5 ml 1 CƯBATH M HY additive Oxy-Metal Industries . Deposit thickness was 50 um 2 mils . From reference 23. Reprinted with permission of American Electroplaters Surface Finishers Soc. Structure 153 Figure 13 Elongation for a series of deposits plated on an Inconel 600 mandrel under the same conditions as Figure 12. From reference 23. Reprinted with permission of American Electroplaters Surface Finishers Soc. b__ 330 I I I 1 1 1 I I 1 I I I I I 1 I 5 300 - Electroless Nickel 11 P s V 5__ X I 250- --------------- 5 200 1 1 1 1 1 0 20 40 60 80 100 120 140 160 Age Time hrs Figure 14 Time temperature profile illustrating the transition from an amorphous to a crystalline structure for electfoless nickel containing 11 wgt phosphorus. Adapted from reference .
