Development of heat-resistant magnesium alloys with high strength by utilizing Laves phases

• Project/Area Number: 19560698
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Structural/Functional materials
• Research Institution: Nagoya University (2008-2009); Tokyo Institute of Technology (2007)
• Principal Investigator: TERADA Yoshihiro Nagoya University, 大学院・工学研究科, 准教授 (40250485)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2007: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: マグネシウム合金 / クリープ変形 / 転位モビリティ / ラーベス相 / Mg-Al-Ca系 / 転位下部組織 / 共晶化合物 / クリープ曲線 / クリープ破断寿命 / 共晶化合物相 / クリープパラメータ / 金属組織 / 共晶

Research Abstract

A description of dislocation movements during creep has been developed through a detailed TEM observation for the Mg-Al-Ca die-cast alloy. Dislocations are introduced within the primary α grain interior in the die-cast process. The basal segments of dislocations are able to bow out and glide on the basal planes under the influence of a stress, and the jogs follow the basal segments with the help of climb during creep. The Laves phase can decrease the climb velocity of dislocations.

Research Products

• [Journal Article] Dislocation Movements during Creep in a Die-Cast AM50 Magnesium Alloy (2009)
  • Author(s): Y. Terada, D. Itoh, T. Sato
  • Journal Title: Mater. Chem. Phys. 117 Pages: 331-334
  • Peer Reviewed
• [Journal Article] Creep Rupture Properties of Die-Cast Mg-Al-Ca Alloys (2009)
  • Author(s): Y. Terada, D. Itoh, T. Sato
  • Journal Title: Mater. Chem. Phys. 113 Pages: 503-506
  • Peer Reviewed
• [Journal Article] Dislocation Analysis of Die-Cast Mg-Al-Ca Alloy after Creep Deformation (2009)
  • Author(s): Y. Terada, D. Itoh, T. Sato
  • Journal Title: Mater. Sci. Eng. A 523 Pages: 214-219
  • Peer Reviewed
• [Journal Article] Effect of Prior Deformation on Creep Behavior of a Die-Cast Mg-Al-Ca Alloy (2009)
  • Author(s): Y. Terada, T. Enokida, T. Sato
  • Journal Title: Mater. Trans. 50 Pages: 2351-2354
  • NAID: 10025558169
  • Peer Reviewed
• [Journal Article] Mg-Al-Caダイカスト合金におけるクリープ中の転位組織解析 (2009)
  • Author(s): 寺田芳弘, 伊藤大吾, 里達雄
  • Journal Title: 耐熱金属材料123委員会研究報告 50 Pages: 229-235
• [Journal Article] Dislocation Movements during Creep in a Die-Cast AM50 Magnesium Alloy (2009)
  • Author(s): Y.Terada, D.Itoh, T.Sato
  • Journal Title: Materials Chemistry and Physics 117 Pages: 331-334
  • Peer Reviewed
• [Journal Article] Dislocation Analysis of Die-Cast Mg-Al-Ca Alloy after Creep Deformation (2009)
  • Author(s): Y.Terada, D.Itoh, T.Sato
  • Journal Title: Materials Science and Engineering A 523 Pages: 214-219
  • Peer Reviewed
• [Journal Article] Effect of Prior Deformation on Creep Behavior of a Die-Cast Mg-Al-Ca Alloy (2009)
  • Author(s): Y.Terada, T.Enokida, T.Sato
  • Journal Title: Materials Transactions 50 Pages: 2351-2354
  • NAID: 10025558169
  • Peer Reviewed
• [Journal Article] Creep Rupture Properties of Die-Cast Mg-Al-Ca Alloys (2009)
  • Author(s): Y. Terada, D. Itoh, T. Sato
  • Journal Title: Materials Chemistry and Physics 113 Pages: 503-506
  • Peer Reviewed
• [Journal Article] Effect of Calcium Additions on Creep Properties of a Die-Cast AM50 Magnesium Alloy (2008)
  • Author(s): D. Itoh, Y. Terada, T. Sato
  • Journal Title: Mater. Trans. 49 Pages: 1957-1962
  • NAID: 10024271565
  • Peer Reviewed
• [Journal Article] Relationship between Minimum Creep Rate and Rupture Life for a Doe-Cast Mg-Al-Mn Alloy (2008)
  • Author(s): Y. Terada, T. Sato
  • Journal Title: Mater. Trans. 49 Pages: 439-442
  • Peer Reviewed
• [Journal Article] Thermophysical Properties of L12 Intermetallic Compounds of Iridium (2008)
  • Author(s): Y. Terada
  • Journal Title: Platinum Met. Rev. 52 Pages: 208-214
  • Peer Reviewed
• [Journal Article] Effect of Calcium Additions on Creep Properties of a Die-Cast AM50 Magnesium Alloy (2008)
  • Author(s): D. Itoh, Y. Terada, T. Sato
  • Journal Title: Materials Transactions 49 Pages: 1957-1962
  • NAID: 10024271565
  • Peer Reviewed
• [Journal Article] Thermophysical Properties of L1_2 Intermetallic Compounds of Iridium (2008)
  • Author(s): Y. Terada
  • Journal Title: Platinum Metals Review 52 Pages: 208-214
  • Peer Reviewed
• [Journal Article] Relationship between Minimum Creep Rate and Rupture Life for a Die-Cast Mg-Al-Mn Alloy (2008)
  • Author(s): Y. Terada & T. Sato
  • Journal Title: Materials Transactions 49 Pages: 439-442
  • NAID: 10021144581
  • Peer Reviewed
• [Journal Article] Creep Parameters in a Die-Cast Mg-Al-Ca Alloy (2007)
  • Author(s): Y. Terada, N. Ishimatsu, T. Sato
  • Journal Title: Mater. Trans. 48 Pages: 2329-2335
  • NAID: 10019853257
  • Peer Reviewed
• [Journal Article] Role of Eutectic Intermetallic Phase on Creep Strength in a Die-Cast Mg-Al-Ca Alloy (2007)
  • Author(s): Y. Terada, Y. Mori, T. Sato
  • Journal Title: Mater. Trans. 48 Pages: 97-100
  • Peer Reviewed
• [Journal Article] Long Term Creep Properties of a Die-Cast Mg-Al-Ca Alloy (2007)
  • Author(s): Y. Terada, T. Sato
  • Journal Title: Mater. Sci. Forum
  • Peer Reviewed
• [Journal Article] Role of Eutectic Intermetallic Phase on Creep Strength in a Die-Cast Mg-Al-Ca Alloy (2007)
  • Author(s): Y. Terada, Y. Mori & T. Sato
  • Journal Title: Materials Transactions 48 Pages: 97-100
  • Peer Reviewed
• [Journal Article] Creep Parameters in a Die-Cast Mg-Al-Ca Alloy (2007)
  • Author(s): Y. Terada, N. Ishimatsu & T. Sato
  • Journal Title: Materials Transactions 48 Pages: 2329-2335
  • NAID: 10019853257
  • Peer Reviewed
• [Journal Article] Long Term Creep Properties of a Die-Cast Mg-Al-Ca Alloy (2007)
  • Author(s): Y. Terada & T. Sato
  • Journal Title: Materials Science Forum 561-565 Pages: 163-166
  • Peer Reviewed
• [Presentation] Mg-Ca二元系鋳造合金の高温クリープ変形 (2010)
  • Author(s): 柴山淳史
  • Organizer: 2010年日本金属学会春期講演大会
  • Place of Presentation: 筑波大学
  • Year and Date: 2010-03-29
• [Presentation] Mg-Al系AM50ダイカスト合金におけるクリープ中の転位ムーブメント (2009)
  • Author(s): 寺田芳弘
  • Organizer: 日本金属学会
  • Place of Presentation: 京都大学
  • Year and Date: 2009-09-16
• [Presentation] Mg-Al系AM50ダイカスト合金におけるクリープ中の転位ムーブメント (2009)
  • Author(s): 寺田芳弘
  • Organizer: 2009年日本金属学会秋期講演大会
  • Place of Presentation: 京都大学
  • Year and Date: 2009-09-16
• [Presentation] Mg-Ca二元系鋳造合金におけるクリープ変形機構 (2009)
  • Author(s): 柴山淳史
  • Organizer: 2009年日本金属学会秋期講演大会
  • Place of Presentation: 筑波大学
  • Year and Date: 2009-09-15
• [Presentation] Mg-Ca二元系鋳造合金における高温クリープ特性 (2009)
  • Author(s): 寺田芳弘
  • Organizer: 日本金属学会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2009-03-30
• [Presentation] Mg-Ca二元系鋳造合金における高温クリープ特性 (2009)
  • Author(s): 寺田芳弘
  • Organizer: 2008年日本金属学会春期講演大会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2009-03-30
• [Presentation] Mg-Al-Caダイカスト合金におけるクリープ中の転位組織解析 (2008)
  • Author(s): 寺田芳弘
  • Organizer: 日本金属学会
  • Place of Presentation: 熊本大学
  • Year and Date: 2008-09-25
• [Presentation] Mg-Al-Caダイカスト合金におけるクリープ中の転位組織解析 (2008)
  • Author(s): 寺田芳弘
  • Organizer: 2008年日本金属学会秋期講演大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2008-09-25
• [Presentation] Mg-Al-Ca系ダイカスト合金における高温クリープ特性 (2008)
  • Author(s): 寺田芳弘
  • Organizer: 日本金属学会
  • Place of Presentation: 武蔵工業大学
  • Year and Date: 2008-03-28
• [Presentation] Mg-Al-Ca系ダイカスト合金における高温クリープ特性 (2008)
  • Author(s): 寺田 芳弘
  • Organizer: 2008年日本金属学会春期講演大会
  • Place of Presentation: 武蔵工業大学
  • Year and Date: 2008-03-28
• [Presentation] Long Term Creep Properties of a Die-Cast Mg-Al-Ca Alloy (2007)
  • Author(s): 寺田芳弘
  • Organizer: 第6回環太平洋材料国際会議
  • Place of Presentation: 済州島(韓国)
  • Year and Date: 2007-11-07
• [Presentation] Mg-Al-Caダイカスト合金のクリープ中における転位組織の発達 (2007)
  • Author(s): 寺田芳弘
  • Organizer: 日本金属学会
  • Place of Presentation: 岐阜大学
  • Year and Date: 2007-09-19
• [Presentation] Mg-Al-Caダイカスト合金のクリープ中における転位組織の発達 (2007)
  • Author(s): 寺田 芳弘
  • Organizer: 2007年日本金属学会秋期講演大会
  • Place of Presentation: 岐阜大学
  • Year and Date: 2007-09-19
• [Presentation] Mg-Al-Ca系耐熱マグネシウム合金におけるクリープ破断特性 (2007)
  • Author(s): 寺田芳弘
  • Organizer: 日本材料科学会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2007-05-25
• [Presentation] Mg-Al-Ca系耐熱マグネシウム合金におけるクリープ破断特性 (2007)
  • Author(s): 寺田 芳弘
  • Organizer: 2007年日本材料科学会講演大会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2007-05-25
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