JP5202038B2 - 高靭性軽合金材料及びその製造方法 - Google Patents
高靭性軽合金材料及びその製造方法 Download PDFInfo
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- JP5202038B2 JP5202038B2 JP2008052393A JP2008052393A JP5202038B2 JP 5202038 B2 JP5202038 B2 JP 5202038B2 JP 2008052393 A JP2008052393 A JP 2008052393A JP 2008052393 A JP2008052393 A JP 2008052393A JP 5202038 B2 JP5202038 B2 JP 5202038B2
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- 229910001234 light alloy Inorganic materials 0.000 title claims description 39
- 239000000956 alloy Substances 0.000 title claims description 27
- 238000004519 manufacturing process Methods 0.000 title description 4
- 239000000463 material Substances 0.000 claims description 18
- 239000012056 semi-solid material Substances 0.000 claims description 15
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 238000010008 shearing Methods 0.000 claims description 10
- 238000009863 impact test Methods 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 21
- 239000002184 metal Substances 0.000 description 21
- 239000013078 crystal Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 13
- 238000001125 extrusion Methods 0.000 description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 7
- 239000011777 magnesium Substances 0.000 description 7
- 229910052749 magnesium Inorganic materials 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000007670 refining Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 238000009864 tensile test Methods 0.000 description 6
- 239000012768 molten material Substances 0.000 description 5
- 230000005496 eutectics Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- 239000000289 melt material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 229910052789 astatine Inorganic materials 0.000 description 1
- RYXHOMYVWAEKHL-UHFFFAOYSA-N astatine atom Chemical compound [At] RYXHOMYVWAEKHL-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 229910052730 francium Inorganic materials 0.000 description 1
- KLMCZVJOEAUDNE-UHFFFAOYSA-N francium atom Chemical compound [Fr] KLMCZVJOEAUDNE-UHFFFAOYSA-N 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052699 polonium Inorganic materials 0.000 description 1
- HZEBHPIOVYHPMT-UHFFFAOYSA-N polonium atom Chemical compound [Po] HZEBHPIOVYHPMT-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/001—Extruding metal; Impact extrusion to improve the material properties, e.g. lateral extrusion
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Description
1. 軽合金の半凝固材に剪断力を加えて金属組織を微細化することにより得られる、高靭性軽合金材料。
2.前記軽合金は、アルミニウム及びマグネシウムの少なくとも1種を含有する、上記項1に記載の高靭性軽合金材料。
3.ECAP加工(Equal Channel Angular Pressing)により剪断力を加える、上記項1又は2に記載の高靭性軽合金材料。
4.シャルピー衝撃試験(JISZ2202 3号)の値が200kJ/m2以上である、上記項1〜3のいずれかに記載の高靭性軽合金材料。
5.軽合金の半凝固材に剪断力を加えて金属組織を微細化することを特徴とする、高靭性軽合金材料の製造方法。
以下、本発明の高靭性軽合金材料及びその製造方法について説明する。
下記表1に示す組成のAC4CHアルミニウム鋳造合金を用意した。そして、当該鋳造合金から得られる「AC4CH半凝固材」を実施例1で用いる試料とした。また、当該鋳造合金から得られる「AC4CH全溶融材」を比較例1で用いる試料とした。
(ECAP加工)
超微細結晶材(UFG材)を作製するECAP装置として、図1に示される、断面形状が等しく、折れ曲がった溝孔を有するダイスを用意した。ダイスは、チャンネル形状が正方形断面(10×10mm)であり、チャンネル角が90°とした。ECAP加工は、ダイス上部から柱状の試料を装填し、荷重によりダイスの他端から押出す。ここで、押出し後の試料の断面形状は変わらないため押出しを繰り返すことができる。押出しを繰り返す(1Pass、2Pass等)際は、試料を90°回転させて再押出しを行ういわゆるルートBを用いた。
(組織観察)
前記6サンプルを、湿式エメリペーパー(♯1000〜♯2000)で研磨し、ダイヤモンドペースト(1μm)でバフ研磨を施して鏡面に仕上げた。次に、2%フッ酸水溶液で腐食後、光学顕微鏡にて組織観察した。
(静的引張試験)
前記6サンプルから、I型試験片を作製し、静的引張試験片とした。
(シャルピー衝撃試験)
前記6サンプルから、JISZ2202 3号試験片(幅7.5mm)を作製し、シャルピー衝撃試験片とした。
≪結 果≫
(組織観察)
光学顕微鏡を用いて撮影したECAP加工前後のAC4CH半凝固材の組織写真を図2(a)〜(c)に示す。
(静的引張試験)
AC4CH全溶融材、AC4CH半凝固材の静的引張試験により得た公称応力−歪み線図を図3に示す。
(シャルピー衝撃試験)
AC4CH全溶融材、AC4CH半凝固材のシャルピー衝撃試験により得たシャルピー衝撃値を図4に示す。
(破断面観察)
シャルピー衝撃試験後のSEMを用いて撮影した破断面の拡大写真を図5、図6に示す。図5、図6のいずれからも、Pass数の増加に伴い、破断面の様相が変化していくことが確認できる。特に半凝固材においては8Passで多くのディンプルが確認できる。
Claims (1)
- 軽合金の半凝固材にECAP加工(Equal Channel Angular Pressing)により剪断力を加えることにより得られる、高靭性軽合金材料であって、
前記軽合金が、アルミニウムを基にした合金であり、前記半凝固材が、球状化した固体と液体とが共存している状態で成型することにより得られたものであり、前記高靭性軽合金材料のシャルピー衝撃試験(JISZ2202 3号)の値が200kJ/m2以上である、高靭性軽合金材料。
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Cited By (2)
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US10851447B2 (en) | 2016-12-02 | 2020-12-01 | Honeywell International Inc. | ECAE materials for high strength aluminum alloys |
US11649535B2 (en) | 2018-10-25 | 2023-05-16 | Honeywell International Inc. | ECAE processing for high strength and high hardness aluminum alloys |
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JP2015158365A (ja) * | 2012-06-11 | 2015-09-03 | 大電株式会社 | 導電材料の疲労試験方法 |
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JP2832660B2 (ja) * | 1992-01-13 | 1998-12-09 | 本田技研工業株式会社 | Al系合金鋳物の鋳造方法 |
JP2000225412A (ja) * | 1999-02-05 | 2000-08-15 | Sumitomo Light Metal Ind Ltd | アルミニウム合金の塑性加工方法及びそれによる高強度高延性アルミニウム合金材 |
JP2003096549A (ja) * | 2001-09-25 | 2003-04-03 | Kenji Azuma | 機械的性質及び衝撃延性に優れた合金及びその製造方法 |
CN101705404A (zh) * | 2003-11-26 | 2010-05-12 | 河村能人 | 高强度高韧性镁合金及其制造方法 |
JP5035717B2 (ja) * | 2005-06-24 | 2012-09-26 | 独立行政法人産業技術総合研究所 | 粒界析出型マグネシウム合金屑からの超塑性マグネシウム合金製造方法 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US10851447B2 (en) | 2016-12-02 | 2020-12-01 | Honeywell International Inc. | ECAE materials for high strength aluminum alloys |
US11248286B2 (en) | 2016-12-02 | 2022-02-15 | Honeywell International Inc. | ECAE materials for high strength aluminum alloys |
US11421311B2 (en) | 2016-12-02 | 2022-08-23 | Honeywell International Inc. | ECAE materials for high strength aluminum alloys |
US11649535B2 (en) | 2018-10-25 | 2023-05-16 | Honeywell International Inc. | ECAE processing for high strength and high hardness aluminum alloys |
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