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EFFECT OF TEMPERATURE ON CREEP CHARACTERISTICS IN MAGNESIUM-BASED AND ALUMINUM-BASED SOLID SOLUTIONS

EFFECT OF TEMPERATURE ON CREEP CHARACTERISTICS IN MAGNESIUM-BASED AND ALUMINUM-BASED SOLID SOLUTIONS
温度对镁基和铝基固体溶液蠕变特性的影响
批准号：
04650593
负责人：
SATO Hiroyuki
金额：
$1.22万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1992
资助国家：
日本
项目状态：
已结题
起止时间：
1992 至 1993
来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04650593/
关键词：
DISLOCATIONMOBILE ASPECTSCONCENTRATION EFFECTSPRE DEFORMATIONRUPTURE LIFEIS EFFECTLONG-TERM STRENGTHHIGH TEMPERATURE DEFORMATIONマグネシウム銅固溶体高温変形クリープ延性改善応力急変

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中文摘要
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英文摘要
(i) Transient behavior by means of stress incremental tests have been investigated in copper-based and magnesium-based solid solutions and have been compared with each other. Dislocations move viscously in both alloys under deformation condition where the apparent activation energy of creep is lager than that for diffusion.(ii) Disappearance in concentration dependence in magnesium-based solid solutions has been investigated experimentally. Concentration dependence of calculated dragging force has the same trend with experimental results. It is suggested that saturation in dragging force cause disappearance in strain-rate.(iii) Effects of high-temperature pre-deformation at temperature range, where creep characteristics are different, have been investigated. Creep rupture life is improved with high-temperature pre-creep at temperature range where activation energy of creep is larger than that for diffusion. The rupture life becomes twice of that without pre-creep under optimal conditions.(iv) Effects of an interstitial element (Nitrogen) on creep characteristics of alpha-iron molybdenum and alpha-iron tungsten solid solutions have been investigated. Effects of nitrogen on creep depend on substitutional elements.(v) Creep behavior of magnesium-manganese alloys has been investigated experimentally.(vi) Effects of aluminum concentration on creep characteristics of aluminum-magnesium solid solutions have been investigated. Transient conditions of creep behavior under wide concentration ranges have been determined.
期刊论文(26)
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会议论文
H.Sato and H.Oikawa: "Effect of Solute Concentration on Creep Characteristics of Solution Hardened Al-Mg Alloys at 600K" Aluminum Alloys, Their Physical and Mechanical Properties. 354-361 (1994)
H.Sato 和 H.Oikawa：“溶质浓度对 600K 固溶硬化铝镁合金蠕变特性的影响”铝合金及其物理和机械性能。
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H.Sato,T.Motoyoshi and H.Oikawa: ""Effect of Nitrogen on High Temperature Deformation of Alpha-Iron and us Solid Solutions."" “Strength of Materials". 547-550 (1994)
H.Sato、T.Motoyoshi 和 H.Oikawa：“氮对 α-铁和我们固溶体高温变形的影响。”“材料强度”547-550 (1994)。
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H.Sato,K.Masada and H.Oikawa: ""Saturation of the Solute Concentration Effect in Alloy-type Creep of Al-Mg and Mg-Al Alloys."" "Aspects of High Temperature Deformation and Fracture in Crystalline Materials. 107-114 (1993)
H.Sato，K.Masada 和 H.Oikawa：“Al-Mg 和 Mg-Al 合金合金型蠕变中溶质浓度效应的饱和。”“晶体材料高温变形和断裂的方面。107
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M.Suzuki,H.Sato and H.Oikawa: "Creep Behavior of Mg-0.5mol%Mn Alloy around 600K" "Strength of Materials". 555-558 (1994)
M.Suzuki,H.Sato%20and%20H.及川:%20"蠕变%20行为%20of%20Mg-0.5mol%Mn%20合金%20around%20600K"%20"强度%20of%20材料".%20555-558
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