Technological Development for Neutralizing Contamination by Impurities in Recycled Aluminum Alloys by Control of Solidification Reaction
控制凝固反应中和再生铝合金中杂质污染的技术开发
基本信息
- 批准号:09555210
- 负责人:
- 金额:$ 7.36万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:1997
- 资助国家:日本
- 起止时间:1997 至 1999
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Effects of impurities, which contaminate the melts during recycling, and useful elements for removal of the impurities on mechanical properties of the recycled aluminum alloys were investigated. Furthermore, shapes and sizes of the crystallized compounds, and grain size were altered by an application of electromagnetic casting and micro alloying, and their influences on mechanical properties were also evaluated.(1) When Mn and Zr, which are effective for removal of iron from the melt, are added to the 6061 AI-Mg-Si alloy, a compound containing Si increases with an increase in Mn content and, therefore, age hardenability is lowered and proof stress and tensile strength decrease. The manganese content in the alloy with 0.3% Zr should be less than 0.4mass% to guarantee the tensile properties specified by JIS.(2) When Si, which contaminate 3003 A1-Mn alloy from a cladding material, and Ca, which is an effective element for the removal of Si from the melt, are added to the alloy, the amount … More of a A1-Fe-Si compound increases as Si content increases, resulting in increases in proof stress and tensile strength, but a decrease in elongation. An addition of Ca above 0.3% gives rise to the disappearance of the A1-Fe-Si compound and the crystallization of a large amount of coarse A1ィイD26ィエD2(Fe,Mn) compound, and consequently, to remarkable degradation of elongation.(3) Application of electromagnetic casting to the fabrication of a thin 5052 A1-Mg slab makes the crystallized compounds to be very fine and uniformly distributed. Therefore, even when the amount of crystallized compounds increases with an increase in Fe content, the compounds are useful for the dispersion strengthening and refining of the recrystallized grains. As a result, it is possible to increase proof stress and tensile strength while maintaining enough elongation with Fe content of up to 0.81%.(4) As a result of adding small amount of Mn, Sr and Ca to 6N01 Al-Mg-Si alloy containing 0.7% Fe, it is found that Sr addition of 0.005% refines A1-Fe-Si compound and improves proof strength and tensile strength of T4-treated specimens and elongation of T6-treated specimens, resulting in satisfying JIS requirement on tensile properties Less
研究了杂质的影响,这些杂质在回收过程中污染了熔体,并研究了去除回收铝合金机械性能的杂质的有用元素。 Furthermore, shapes and sizes of the crystallized compounds, and grain size were altered by an application of electromagnetic casting and micro alloying, and their influences on mechanical properties were also evaluated.(1) When Mn and Zr, which are effective for removal of iron from the melt, are added to the 6061 AI-Mg-Si alloy, a compound containing Si increases with an increase in Mn content and, therefore, age降低了坚固性,证明应力和拉伸强度降低。 The manganese content in the alloy with 0.3% Zr should be less than 0.4mass% to guarantee the tensile properties specified by JIS.(2) When Si, which contaminate 3003 A1-Mn alloy from a cladding material, and Ca, which is an effective element for The removal of Si from the melt, are added to the alloy, the amount … More of a A1-Fe-Si compound increase as Si content increase, resulting in increases在证明压力和拉伸强度中,但伸长率降低。添加Ca高于0.3%的添加导致A1-FE-SI化合物的消失以及大量粗a1-fe-Si化合物的结晶以及大量粗a1-fe-Si D26(Fe,Mn)化合物的结晶,因此,以及因此,Electromagnation to and casting a casting a casting a casting a casting a casting a casting a casting a casting a casting a casting a casting a splabiation。结晶化合物非常细,分布均匀。因此,即使当结晶化合物的量随FE含量的增加而增加时,这些化合物也可用于加强和精炼的重结晶晶粒。结果,可以增加证明压力和拉伸强度,同时保持足够的伸长率,而Fe含量高达0.81%。(4)由于将少量Mn,SR和CA添加到6N01 AL-MG-SI含有0.7%Fe中,因此,SR添加了0.005%的A1-FE-SRICENT和PILLICT and PILLICT and PROTICT and PROTICE and PROTICT and PRICECT和T4的优势和T4,T4 T6处理的标本的,从而满足了JIS对拉伸性能的要求较少
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Y. Kojima: "Present Status of alminum Recycling and Recycling Technology Under Development in Japan"Proc. of The Rewas'99 Global Symp. on Recycling, Waste Treatment and Clean Technology. 2. 1083-1091 (1999)
Y. Kojima:“日本铝回收的现状和正在开发的回收技术”Proc。
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S. Kamado: "Fabrication of 5052 Aluminum Alloy Thin Slab by Electromagnetic Casting and Mechanical Properties of Its Cold-Rolled Sheet"Solidification & Gravity 2000, Materials Science Forum, (Proc. of The 3rd Intern. Conf. on Solidification and Gravity).
S. Kamado:《电磁铸造5052铝合金薄板坯的制造及其冷轧板的力学性能》凝固
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大野 猛: "6001アルミニウム合金のミクロ組織および機械的性質に及ぼすMn,Zrの影響" 軽金属. 第48巻 2号. 67-72 (1998)
Takeshi Ohno:“Mn 和 Zr 对 6001 铝合金显微组织和机械性能的影响”《轻金属》第 48 卷第 2. 67-72 (1998)。
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Y. Ishikawa, M. Hara, S. Kamado, Y. Kojima, S. Nishi and H. Matsuzaki: "Effect of Mn, Ca and Sr Addition on Various Properties of 6N01 Aluminum Alloy"Abstracts of the 96th Conf. of Japan Institute of Light Metals. 153-154 (1999)
Y. Ishikawa、M. Hara、S. Kamado、Y. Kojima、S. Nishi 和 H. Matsuzaki:“Mn、Ca 和 Sr 添加对 6N01 铝合金各种性能的影响”第 96 届会议摘要
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Y. Kabayama, T. Kosaka, S. Kamado, Y. Kojima and T. Muramatsu: "Microstructure of Thin Aluminum Alloy Slabs fabricated by Electromagnetic Casting and Tensile Properties of Their Cold-Rolled Sheets"Abstracts of the 94ィイD1thィエD1 Conf. of Japan Institute of
Y. Kabayama、T. Kosaka、S. Kamado、Y. Kojima 和 T. Muramatsu:“电磁铸造薄铝合金板的微观结构及其冷轧板的拉伸性能”第 94-D1 次 D1 会议摘要日本研究所
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{{ truncateString('KOJIMA Yo', 18)}}的其他基金
Platform Science and Technology for Advanced Magnesium Alloys -Extra Light Metals in the 21st Century-
先进镁合金平台科学与技术-21世纪的超轻金属-
- 批准号:
11225101 - 财政年份:1999
- 资助金额:
$ 7.36万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas
Development of Environmental-friendly Wrought Magnesium Alloys
环保型变形镁合金的开发
- 批准号:
11305049 - 财政年份:1999
- 资助金额:
$ 7.36万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Phase Decomposition of Heat Resistant Magnesium Alloys Containing Heavy Rare Earth Elements and Its Control
含重稀土耐热镁合金的相分解及其控制
- 批准号:
07455257 - 财政年份:1995
- 资助金额:
$ 7.36万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of Advanced Heat Resistant Aluminides Produced by ma Process
先进耐热铝化物的研制
- 批准号:
02555142 - 财政年份:1990
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$ 7.36万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research (B)
Fabrication and properties of SiC whisker/aluminum alloy composites
SiC晶须/铝合金复合材料的制备及性能
- 批准号:
62550518 - 财政年份:1987
- 资助金额:
$ 7.36万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
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