電気Ni-P合金めっき皮膜の電着応力
Internal stresses of electroplated Ni-P alloys and electrolytic hydrogen charging to the deposits were investigated using a spiral stress contract-meter technique. The current density increased the internal stress of the deposit, but the bath temperature decreased it. Internal stress depends on the...
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Veröffentlicht in: | Hyōmen gijutsu 2017/05/01, Vol.68(5), pp.291-297 |
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description | Internal stresses of electroplated Ni-P alloys and electrolytic hydrogen charging to the deposits were investigated using a spiral stress contract-meter technique. The current density increased the internal stress of the deposit, but the bath temperature decreased it. Internal stress depends on the P content of the Ni-P alloy deposits. Deposits containing more than about 20 at% P are stressed compressively, whereas those with lower P content undergo tensile stress. Effects of hydrogen penetration into and escape from deposits on the stress of Ni-P alloy deposited spirals were examined in terms of the electrolytic hydrogen charge, which led to classification into two groups. The first group showed great change of stress by the hydrogen charge and showed tensile stress under electrodeposition. The second group showed no change of stress by the hydrogen charge. They show compressive stress that depends on the hydrogen diffusion constant of the deposits. Hydrogen incorporation, its trapping in the deposits, and its subsequent escape under electrodeposition play important roles in the internal stress of Ni-P alloy electrodeposits. |
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The current density increased the internal stress of the deposit, but the bath temperature decreased it. Internal stress depends on the P content of the Ni-P alloy deposits. Deposits containing more than about 20 at% P are stressed compressively, whereas those with lower P content undergo tensile stress. Effects of hydrogen penetration into and escape from deposits on the stress of Ni-P alloy deposited spirals were examined in terms of the electrolytic hydrogen charge, which led to classification into two groups. The first group showed great change of stress by the hydrogen charge and showed tensile stress under electrodeposition. The second group showed no change of stress by the hydrogen charge. They show compressive stress that depends on the hydrogen diffusion constant of the deposits. Hydrogen incorporation, its trapping in the deposits, and its subsequent escape under electrodeposition play important roles in the internal stress of Ni-P alloy electrodeposits.</description><identifier>ISSN: 0915-1869</identifier><identifier>EISSN: 1884-3409</identifier><identifier>DOI: 10.4139/sfj.68.291</identifier><language>jpn</language><publisher>Tokyo: 一般社団法人 表面技術協会</publisher><subject>Alloys ; Compressive properties ; Deposits ; Electrodeposition ; Electrolytic Hydrogen Charge ; Electroplating ; Hydrogen ; Hydrogen charging ; Hydrogen Incorporation ; Hydrogen penetration ; Internal Stress ; Ni-P Alloy Electroplating ; Nickel base alloys ; Nickel plating ; P Content ; Residual stress ; Spirals ; Tensile stress</subject><ispartof>表面技術, 2017/05/01, Vol.68(5), pp.291-297</ispartof><rights>2017 一般社団法人 表面技術協会</rights><rights>Copyright Japan Science and Technology Agency 2017</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,1884,27929,27930</link.rule.ids></links><search><creatorcontrib>森河, 務</creatorcontrib><creatorcontrib>石田, 幸平</creatorcontrib><creatorcontrib>中出, 卓男</creatorcontrib><title>電気Ni-P合金めっき皮膜の電着応力</title><title>Hyōmen gijutsu</title><addtitle>表面技術</addtitle><description>Internal stresses of electroplated Ni-P alloys and electrolytic hydrogen charging to the deposits were investigated using a spiral stress contract-meter technique. The current density increased the internal stress of the deposit, but the bath temperature decreased it. Internal stress depends on the P content of the Ni-P alloy deposits. Deposits containing more than about 20 at% P are stressed compressively, whereas those with lower P content undergo tensile stress. Effects of hydrogen penetration into and escape from deposits on the stress of Ni-P alloy deposited spirals were examined in terms of the electrolytic hydrogen charge, which led to classification into two groups. The first group showed great change of stress by the hydrogen charge and showed tensile stress under electrodeposition. The second group showed no change of stress by the hydrogen charge. They show compressive stress that depends on the hydrogen diffusion constant of the deposits. 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subjects | Alloys Compressive properties Deposits Electrodeposition Electrolytic Hydrogen Charge Electroplating Hydrogen Hydrogen charging Hydrogen Incorporation Hydrogen penetration Internal Stress Ni-P Alloy Electroplating Nickel base alloys Nickel plating P Content Residual stress Spirals Tensile stress |
title | 電気Ni-P合金めっき皮膜の電着応力 |
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