JP5448563B2 - 耐変色性に優れた酸性雨大気環境用チタンまたはチタン合金 - Google Patents
耐変色性に優れた酸性雨大気環境用チタンまたはチタン合金 Download PDFInfo
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- JP5448563B2 JP5448563B2 JP2009119957A JP2009119957A JP5448563B2 JP 5448563 B2 JP5448563 B2 JP 5448563B2 JP 2009119957 A JP2009119957 A JP 2009119957A JP 2009119957 A JP2009119957 A JP 2009119957A JP 5448563 B2 JP5448563 B2 JP 5448563B2
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- titanium
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- 239000010936 titanium Substances 0.000 title claims description 129
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims description 118
- 229910001069 Ti alloy Inorganic materials 0.000 title claims description 10
- 238000003916 acid precipitation Methods 0.000 title claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 129
- 229910052719 titanium Inorganic materials 0.000 claims description 118
- 229910052757 nitrogen Inorganic materials 0.000 claims description 62
- 238000002845 discoloration Methods 0.000 claims description 31
- 229910052799 carbon Inorganic materials 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 23
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 20
- 239000001301 oxygen Substances 0.000 claims description 20
- 238000007733 ion plating Methods 0.000 claims description 11
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 10
- 229910052709 silver Inorganic materials 0.000 claims description 10
- 239000004332 silver Substances 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 8
- 239000012298 atmosphere Substances 0.000 claims description 6
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 5
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 57
- 239000002585 base Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 8
- 238000000137 annealing Methods 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 229910001873 dinitrogen Inorganic materials 0.000 description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 239000004566 building material Substances 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000005554 pickling Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000005539 carbonized material Substances 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000010849 ion bombardment Methods 0.000 description 1
- 229940110728 nitrogen / oxygen Drugs 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000005211 surface analysis Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- XROWMBWRMNHXMF-UHFFFAOYSA-J titanium tetrafluoride Chemical compound [F-].[F-].[F-].[F-].[Ti+4] XROWMBWRMNHXMF-UHFFFAOYSA-J 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
Description
(1)母材がチタンまたはチタン合金であり、該母材の表面上に厚みが0.2〜1.5μmの窒素富化チタン層が形成され、かかる窒素富化チタン層中に平均原子%で、20〜60原子%の窒素および1〜40原子%の酸素が含有され、かつ前記窒素富化チタン層の最外層の0.1μmの範囲におけるTi(平均原子%値)/N(平均原子%値)の割合が1.2〜4.0の範囲にあり、かつ母材表面から内部に向かって0.2μmの深さの範囲における平均の炭素濃度が1原子%以上15原子%以下であり、前記窒素富化チタン層の最外層の0.1μmの範囲におけるTi(平均原子%値)/N(平均原子%値)は、酸素を含有する窒素雰囲気中でのイオンプレーティング処理を、窒素ガスの導入を停止しつつ継続することにより、1.2〜4.0の範囲とし、かつ色彩測定値L*,a*,b*がそれぞれ、40〜80、−6〜6、−6〜9で、銀色の外観を呈することを特徴とする、耐変色性に優れた酸性雨大気環境用チタン。
(2)さらに、窒素富化チタン層中にTiO2が形成されていることを特徴とする上記(1)に記載の、耐変色性に優れた酸性雨大気環境用チタン。
ΔE=((L*2−L*1)2+(a*2−a*1)2+(b*2−b*1)2)1/2
によって算出した。ここで、L*1,a*1,b*1は変色試験前の色彩の測定結果で、L*2,a*2,b*2は、変色試験後の色彩の測定結果で、JIS Z8729法に規定されている L* a* b*表色法に基づくものである。当然色差の値の少ないものほど、耐変色性に優れている。色差が4以下のものを合格とした。
Claims (2)
- 母材がチタンまたはチタン合金であり、該母材の表面上に厚みが0.2〜1.5μmの窒素富化チタン層が形成され、かかる窒素富化チタン層中に平均原子%で、20〜60原子%の窒素および1〜40原子%の酸素が含有され、かつ前記窒素富化チタン層の最外層の0.1μmの範囲におけるTi(平均原子%値)/N(平均原子%値)の割合が1.2〜4.0の範囲にあり、かつ母材表面から内部に向かって0.2μmの深さの範囲における平均の炭素濃度が1原子%以上15原子%以下であり、前記窒素富化チタン層の最外層の0.1μmの範囲におけるTi(平均原子%値)/N(平均原子%値)は、酸素を含有する窒素雰囲気中でのイオンプレーティング処理を、窒素ガスの導入を停止しつつ継続することにより、1.2〜4.0の範囲とし、かつ色彩測定値L*,a*,b*がそれぞれ、40〜80、−6〜6、−6〜9で、銀色の外観を呈することを特徴とする、耐変色性に優れた酸性雨大気環境用チタン。
- さらに、窒素富化チタン層中にTiO2が形成されていることを特徴とする請求項1に記載の、耐変色性に優れた酸性雨大気環境用チタン。
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JP6515379B2 (ja) * | 2014-10-20 | 2019-05-22 | 日本製鉄株式会社 | 耐溶損性に優れる低融点溶融金属処理部材及びその製造方法 |
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JP2001058326A (ja) * | 1999-08-23 | 2001-03-06 | Olympus Optical Co Ltd | 樹脂成形用金型およびその製造方法 |
JP4418386B2 (ja) * | 2005-03-02 | 2010-02-17 | 新日本製鐵株式会社 | 大気環境中において変色を生じにくいチタンまたはチタン合金 |
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