共搜索到189条信息，每页显示10条信息，共19页。用时：0小时0分0秒707毫秒
and macrosegregation of A270 mm DC ingots of an Al-Zn-Mg-Cu-Zr alloy [J]. Materials Letters, 2005, 59: 1502-1506. [9] ZHANG X L, LI T J, TENG H T, XIE S S, JIN J Z. Semisolid processing AZ91 magnesium alloy...] HITCHCOCK M, WANG Y, FAN Z. Secondary solidification behaviour of the Al-Si-Mg alloy prepared by the rheo-diecasting process[J]. Acta Materialia, 2007, 55: 1589-1598. [13] BAYRAKTAR Y, LIANG D......
Effect of minor Sc and Zr on microstructure and mechanical properties of Al-Zn-Mg-Cu alloy HE Yong-dong(贺永东), ZHANG Xin-ming(张新明), YOU Jiang-hai(尤江海) School of Materials Science and Engineering... of 4 mm containing minor Sc and Zr were prepared. The effect of joint addition of minor Sc and Zr on microstructure and mechanical properties of Al-Zn-Mg-Cu alloys were investigated by using OM, SEM......
. Influence of severe plastic deformation on aging effect of Al-Zn-Mg-Cu-Zr alloy [J]. Mater Sci Eng A, 1997, A234-236: 339-342. [17] RADMILOVIC V, THOMAS G, SHIFLET G J, STARKE E A. On the nucleation...] RUSSO E D, CONSERVA M, BURATTI M, GATTO F. A new thermo-mechanical procedure for improving the ductility and toughness of Al-Zn-Mg-Cu alloys in the transverse directions [J]. Mater Sci Eng A, 1974, 14......
aged and over aged Al-Zn-Mg-Cu-Zr alloy during slow strain rate testing[J]. J Mater Sci, 2007, 42: 5458-5464. [8] LOFFLER H, KOVACS I, LENDVAI J. Review decomposition processes in Al-Zn-Mg alloys[J... on the 1973 aluminum alloy during the whole ageing process at 140 ℃. Key words: 1973 aluminum alloy; ageing hardening; precipitation; precipitation sequence Al-Zn-Mg-Cu系合金是高强铝合金,它具有高的比强度和硬度,耐用且经济,易于加工......
料.在Al-Zn-Mg合金的基础上,俄罗斯全俄轻合金研究所与全俄复合材料研究院合作,复合添加合金元素钪和锆,开发出了新型中强可焊Al-Zn-Mg-Sc-Zr合金 [1].目前,国内外对含Sc的Al-Mg和Al-Zn-Mg(-Cu)合金进行了研究.Ocenasek等[2]研究了添加Sc和Zr对Al-Mg合金再结晶行为的抑制作用.Yin等[3-4]研究了含Sc,Zr的Al-Mg和Al-Zn-Mg合金组织与性能,认为合金中Sc,Zr主要以初生Al3(Sc,Zr)和次生Al3(Sc,Zr) 2种形式存在,初生Al3(Sc,Zr)粒子可强烈细化合金的铸态晶粒组织,次生Al3(Sc,Zr)粒子能有效抑制合金加工和热处理过程中的再结晶.Norman等[5]证实了Sc对7000系合金焊接性能的改善作用.Li等[6-7]还研究了微量Sc和Zr对Al-Zn-Mg-Cu合金组织性能的影响.在此,本文作者研究Al......
, 17(1): 70-74. [16] DONG Jie, CUI Jian-zhong, DING Wen-jiang. Theoretical discussion of the effect of a low-frequency electromagnetic vibrating field on the as-cast microstructures of DC Al-Zn-Mg-Cu-Zr...件下Al-Si合金凝固组织形貌特征,发现行波磁场促使整个试样内部形成均匀细小的晶粒分布,但同时扩大偏析区域.电磁搅拌技术在连铸生产过程中也得到成功应用,电磁场驱动液态钢水流动,起到对凝固组织的形态,传热和传质条件进行控制的作用,从而达到改善铸坯凝固组织,减少中心偏析,缩孔及疏松等缺陷的目的[8-9].时至今日,电磁搅拌器已成为国际先进钢铁企业生产附加值产品必不可少的特殊冶金装备,电磁搅拌技术也仍是......
D J. Grain structure and quench-rate effects on strength and toughness of AA 7050 Al-Zn-Mg-Cu-Zr alloy plate[J]. Metallurgical and Materials Transactions A, 1995, 26(9): 2481-2484. [5] 韩念梅, 张新明, 刘胜胆... than that of the single-stage solution treated samples. Key words: 7050 aluminum alloy; fracture toughness; solution treatment; tensile property Al-Zn-Mg-Cu系铝合金厚板被广泛地应用于航空航天领域,其中7050铝合金由于淬火敏感性较低,大量地......
on structure formation and improvement of properties of high-strength Al-Zn-Mg-Cu-Zr alloys [J]. Advanced Performance Materials, 1995, 2: 43-50. [21] PETZOW G, EFFENBERG G. Ternary alloys: A comprehensive...]. International Journal of Cast Metals Research, 2003, 16(5): 451-465. [5] TAYLOR J A,SCHAFFER G B,STJOHN D H. The role of iron in the formation of porosity in Al-Si-Cu-based casting alloys: Part II......
, FANG Can-feng, HAO Hai. Effects of Gd and Y additions on microstructure and properties of Al-Zn-Mg-Cu-Zr alloys[J]. Materials Science and Engineering A, 2012, 552: 230-235. [9] 李慧中, 张新明, 陈明安, 周卓平, 龚...Si相的变质细化作用,在Y含量为0.1%时,Si相获得最佳的变质效果. 关键词: 稀土Y；Al-Si-Cu-Mg 合金；高温力学性能；变质 中图分类号:TG 146.21 文献标志码......
of Technology Press, 2004: 164-166. [9] ZHANG Hui, JIN Neng-ping, CHEN Jiang-hua. Hot deformation behavior of Al-Zn-Mg-Cu-Zr aluminum alloys during compression at elevated temperature[J]. Transactions... aluminum alloy during hot compression deformation at elevated temperature[J]. The Chinese Journal of Nonferrous Metals, 2010, 20(1): 43-48. [12] 何振波, 李慧中, 梁霄鹏, 尹志民. Al Zn Mg Sc Zr合金的热变形行为及加工图[J]. 中国有色金属学......
