JP2013023768A - マグネシウム合金材、およびマグネシウム合金の表面処理方法 - Google Patents
マグネシウム合金材、およびマグネシウム合金の表面処理方法 Download PDFInfo
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- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 134
- 239000000956 alloy Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000004381 surface treatment Methods 0.000 claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 239000012528 membrane Substances 0.000 claims abstract description 16
- 239000011148 porous material Substances 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims description 29
- 238000011282 treatment Methods 0.000 claims description 22
- 150000001875 compounds Chemical class 0.000 claims description 21
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 18
- 239000000347 magnesium hydroxide Substances 0.000 claims description 18
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 18
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 13
- 239000000395 magnesium oxide Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 10
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 9
- 238000010306 acid treatment Methods 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 abstract description 48
- 238000005260 corrosion Methods 0.000 abstract description 48
- 239000011777 magnesium Substances 0.000 description 18
- 239000000243 solution Substances 0.000 description 18
- 150000003839 salts Chemical class 0.000 description 15
- 238000012360 testing method Methods 0.000 description 15
- 238000007654 immersion Methods 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 229910052749 magnesium Inorganic materials 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 8
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 8
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 8
- 235000019838 diammonium phosphate Nutrition 0.000 description 8
- 239000003973 paint Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000004137 magnesium phosphate Substances 0.000 description 6
- 229960002261 magnesium phosphate Drugs 0.000 description 6
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 6
- 235000010994 magnesium phosphates Nutrition 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 239000002585 base Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- -1 magnesium phosphate compound Chemical class 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000000026 X-ray photoelectron spectrum Methods 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229940085991 phosphate ion Drugs 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
【解決手段】マグネシウム合金11に液体による表面処理を施し、次いで、温度が145℃以上160℃以下、容器内圧力が0.35MPa以上0.5MPa以下の容器10内で、孔径が10nm以上100nm以下のメンブレンフィルターを通過した、液滴状および/または気体状の水13と接触させることによって得られるマグネシウム合金材。また、マグネシウム合金に液体による表面処理を行う工程と、前記表面処理を行ったマグネシウム合金を、温度が145℃以上160℃以下、容器内圧力が0.35MPa以上0.5MPa以下の容器内で、孔径が10nm以上100nm以下のメンブレンフィルターを通過した、液滴状および/または気体状の水と接触させる工程を含むマグネシウム合金の表面処理方法。
【選択図】図1
Description
[第1の実施態様]
本発明の第1の実施形態に係るマグネシウム合金材について以下に説明する。
[第2の実施形態]
本発明の第2の実施形態に係る、以下の、(a)、(b)工程を含むことを特徴とするマグネシウム合金の表面処理方法について説明する。
(a)マグネシウム合金に液体による表面処理を行う工程、
(b)前記表面処理を行ったマグネシウム合金を、温度が145℃以上160℃以下、容器内圧力が0.35MPa以上0.5MPa以下の容器内で、孔径が10nm以上100nm以下のメンブレンフィルターを通過した、液滴状および/または気体状の水と接触させる工程。
実施例、比較例では、生成物について膜厚、密着性および耐食性の評価を行っており、まず、その評価方法について以下に説明する。
原料であるマグネシウム合金としては、Alを2.98wt.%含有し、添加成分として、Znを0.88wt.%、Mnを0.38wt.%含有するマグネシウム合金(ケーエステクノス株式会社製)を用いた。また、マグネシウム合金の大きさとしては、押し出し材を、縦20mm、横20mm、厚さ1.5mmの大きさにカットしたものを使用している。
[比較例1]
実施例1と同様の20wt%リン酸水素二アンモニウム溶液の入ったビーカーにおいて、マグネシウム合金を浸漬させ、室温および50℃で3分間保持した。処理後の膜厚、密着性、耐食性を後述する比較例2の結果とともに表2に示す。
[比較例2]
実施例1と同様の20wt%リン酸水素二アンモニウム溶液の入ったビーカーにおいて、マグネシウム合金を浸漬させ、室温および50℃で3分間保持し、その後、溶液処理したマグネシウム合金をステンレス製の網に吊し、下部に水を入れてメンブレンフィルターを使用せずに、容器内の圧力を0.4MPaに制御しつつ、150℃で3時間蒸気養生処理した。処理後の膜厚、密着性、耐食性を表2に示す。
11 マグネシウム合金
12 メンブレンフィルター
13 水
Claims (11)
- マグネシウム合金に液体による表面処理を施し、
前記表面処理を施したマグネシウム合金を温度が145℃以上160℃以下、容器内圧力が0.35MPa以上0.5MPa以下の容器内で、孔径が10nm以上100nm以下のメンブレンフィルターを通過した、液滴状および/または気体状の水と接触させることによって得られることを特徴とするマグネシウム合金材。 - 前記液体による表面処理は、
化成処理、酸処理、アルカリ処理、めっき処理から選択される少なくとも一種の表面処理法によるものであることを特徴とする請求項1に記載のマグネシウム合金材。 - 前記表面処理で用いた液体の成分を含有する化合物の含有率が、1重量%以上35重量%以下であることを特徴とする請求項1または2に記載のマグネシウム合金材。
- 前記表面処理で用いた液体の成分を含有する化合物を含む皮膜の膜厚が、0.5μm以上20μm以下であることを特徴とする請求項1乃至3のいずれか一項に記載のマグネシウム合金材。
- 水酸化マグネシウムを10重量%以上65重量%以下含有することを特徴とする請求項1乃至4のいずれか一項に記載のマグネシウム合金材。
- 水酸化マグネシウムを含有する皮膜の膜厚が、1μm以上200μm以下であることを特徴とする請求項1乃至5のいずれか一項に記載のマグネシウム合金材。
- 酸化マグネシウムを1重量%以上20重量%以下含有することを特徴とする請求項1乃至6のいずれか一項に記載のマグネシウム合金材。
- 以下の、(a)、(b)工程を含むことを特徴とするマグネシウム合金の表面処理方法。
(a)マグネシウム合金に液体による表面処理を行う工程、
(b)前記表面処理を行ったマグネシウム合金を、温度が145℃以上160℃以下、容器内圧力が0.35MPa以上0.5MPa以下の容器内で、孔径が10nm以上100nm以下のメンブレンフィルターを通過した、液滴状および/または気体状の水と接触させる工程。 - 前記(a)工程における前記液体による表面処理は、
化成処理、酸処理、アルカリ処理、めっき処理から選ばれる少なくとも一種の表面処理法によるものであることを特徴とする請求項8に記載のマグネシウム合金の表面処理方法。 - 前記(b)工程を、1時間以上24時間以内の時間で行うことを特徴とする請求項8または9に記載のマグネシウム合金の表面処理方法。
- 請求項8乃至10のいずれか一項に記載の表面処理方法により処理されたことを特徴とするマグネシウム合金材。
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KR101516379B1 (ko) * | 2013-12-27 | 2015-05-06 | 재단법인 포항산업과학연구원 | 마그네슘 또는 마그네슘 합금의 표면처리 방법 |
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