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Study on Thermal Stability of Ni-P-Fe and Ni-P-B Layers Electroplated on Alloy 600
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 Title & Authors
Study on Thermal Stability of Ni-P-Fe and Ni-P-B Layers Electroplated on Alloy 600
Kim, Myong-Jin; Kim, Joung-Soo; Kim, Dong-Jin; Kim, Hong-Pyo;
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In this study, thermal stability of the mechanical properties of Ni-P-B and Ni-P-Fe layers electroplated on Alloy 600 material was evaluated by measuring their microhardness, tensile strength, and elongation after heat treatment at and . According to the results, there was no noticeable change in microhardness of the two electrodeposits before and after heat treatment at the temperatures for 30 days. In the case of a Ni-P-B electrodeposit, ultimate tensile strength (UTS) slightly increases with heat treatment time, while its elongation decreases, showing good thermal stability in the mechanical properties at high temperature. On the other hand, UTS and elongation of Ni-P-Fe decrease with heat treatment time, which is very unusual observation. This result was attributed to the bad microstructure of Ni-P-Fe having many defects in the deposit formed early stage of an electroplating process and their redistribution to link to become large ones during heat treatment.
Electroplating;Ni-P-B;Ni-P-Fe;Thermal stability;Alloy 600;
 Cited by
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