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516毫秒
of the Al-Zn-Mg-Cu-Zr alloys [D]. Harbin: Harbin Institute of Technology, 2007. (in Chinese) [3] ADLER P N, DEIASI R. Calorimetric studies of 7000 series aluminum alloys: II. Comparison of 7075, 7050... Trans. Nonferrous Met. Soc. China 22(2012) 2087-2091 Microstructure evolution in cooling process of Al-Zn-Mg-Cu alloy and kinetics description ZHANG Yu-hua1, YANG Shu-cai1, JI Hong-zhi2 1......
合金中析出非共格的E(Al18Cr2Mg3)相.冷却速率较小时,粗大平衡相更易于非共格的E相上析出.在2~40 ℃/s的冷却速率范围内,含Zr合金具有更高的强度;以Zr代Cr可使125 mm厚的板材强度提高约50 MPa,同时保持断裂韧性相当[67].因此,低淬火敏感性合金中的Cr含量都很低,如表1所列.B93合金添加Zr后淬火敏感性增加,Al-Zn-Mg-Cu-Zr合金中添加Co元素可显著降低淬火敏感性[61].Sc的加入可降低Al-Zn-Mg-Cu合金固溶体的稳定性,其作用较Zr和Mn要大,但小于Cr的;Sc含量越高时,保持的非再结晶组织越多,亚晶粒平均尺寸越小,亚晶界越多[68],而缓冷时,η平衡相形核的位置越多,合金的淬火敏感性越高. 微量元素的含量对合金淬火敏感性也有很大的影响.B95合金的淬火敏感性随Cr和Mn含量的减小而降低[61].本文作者研究了Zr含量(0~0.15%)对......
cracking and high fracture toughness, which renders them very useful in aerospace applications [1,2]. The Al-Zn-Mg- Cu-Zr(7055 alloy) contains a higher Zn/Mg ratio relative to 7150 alloy and a less... and microstructure of Al-Zn-Mg-Cu-Zr alloy during hot deformation [J]. International Journal of Minerals, Metallurgy and Materials, 2010, 17(1): 46-51. [7] LI Jun-peng, SHEN Jian, YAN Xiao-dong, MAO Bai-ping......
-Cu-Zr alloy plate [J]. Metall Mater Trans A, 1994, 26(9): 2481-2484. [19] STRAINK M J, LI X M. A model for the electrical conductivity of peak-aged and overaged Al-Zn-Mg-Cu alloys [J]. Metall Mater...Trans. Nonferrous Met. Soc. China 22(2012) 2638-2644 Precipitation behavior and properties of a new high strength Al-Zn-Mg-Cu alloy ZANG Jin-xin, ZHANG Kun, DAI Sheng-long Beijing Institute......
welds [4-6]. Zr can also inhibit recrystallization in Al alloys [7]. Among these alloys, Al-Zn-Mg-Cu-Zr-Sc alloy has attached much attention in recent years. Nevertheless, researches showed that a refined..., LIU J S. Effects of minor Sc on the microstructure and mechanical properties of Al-Zn-Mg-Cu-Zr based alloys [J]. Rare Metals, 2009, 28(1): 102-106. [12] YU Kun, LI Song-rui, LI Wen-xian, XIAO Yu-de......
of the effect of a low-frequency electromagnetic vibrating field on the as-cast microstructures of DC Al-Zn-Mg-Cu-Zr ingots [J]. Journal of Crystal Growth, 2006, 295: 179-187. [13] GUO Shi-jie, CUI Jian-zhong... investment, extensive alloy application scope and low pollution, which make PMF process become one of the most promising new techniques to refine the solidified structure [8,9]. BAN et al [7] applied a pulsed......
]. Materials Science and Engineering A, 2012, 547: 55-63. [13] MUKHOPADHYAY A K, KUMAR A, RAVEENDRA S, SAMAJDAR I. Development of grain structure during superplastic deformation of an Al-Zn-Mg-Cu-Zr... evolution in superplastic Al-Li-Mg-Cu-Zr AA8090 [J]. Acta Materialia, 2007, 55(15): 4995-5006. [2] SAKAI G, HORITA Z, LANGDON T G. Grain refinement and superplasticity in an aluminum alloy processed by high......
金组元Zn,Mg和Cu在Al-Zn-Mg-Cu系铝合金凝固过程中的合金化机理与作用. 1 实验 1.1 实验材料 根据实验选用的7449,7056,7136及7095这4种合金的注册化学成分范围[26],确定了各合金的实际化学组成,如表1所列.合金铸锭坯熔铸选择原料分别为高纯Al,高纯Zn,高纯Mg,高纯电解Cu及Mg-Zr中间合金(Zr含量为30%),晶粒细化剂... of Nonferrous Metals Society of China, 2011, 21(7): 1449-1454. [17] 戴晓元, 夏长清, 马 科, 刘 娟. Sc对Al-Zn-Mg-Cu-Zr合金铸态组织和力学性能的影响[J]. 中国有色金属学报, 2007, 17(8): 1324-1329.DAI Xiao-yuan, XIA Chang-qing, MA Ke, LIU Juan......
- 0.26Sc-0.11Zr (mass fraction, %) was prepared with pure Al, pure Mg, pure Zn and Al-Sc, Al-Zr, Al-Cu, Al-Mn master alloys by ingot metallurgy in a crucible furnace. The ingot was homogenized at 470 °C... [J]. Acta Materialia, 2003, 51: 2149-2159. [23] Senkov O N, Shagiev M R, Senkova S V, Miracle D B. Precipitation of Al3(Sc,Zr) particles in an Al-Zn-Mg-Cu-Sc-Zr alloy during conventional solution heat......
and re-aging of spray formed 7075 alloy[J]. Acta Metallurgica Sinica, 2014, 50(7): 863-870. [10] 李文斌, 潘清林, 刘俊生, 梁文杰, 刘晓艳, 何运斌. 回归再时效处理对含Sc 超高强Al-Zn-Mg-Cu-Zr 合金组织与性能的影响[J]. 稀有金属材料与工程, 2010, 39(9... strength Al-Zn-Mg-Cu-Zr alloy containing Sc[J]. Rare Metal Materials and Engineering, 2010, 39(9): 1646-1650. [11] PENG G S, CHEN K H, CHEN S Y, FANG H C. Influence of repetitious-RRA treatment......