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extracted from master alloys: (a)1#; (b) 2#; (c) 3#; (d) 4#; (e) 5#; (f) 6# Fig.3 Macrostructures of 99.8% Al(a) and 99.98% Al(b) without grain refining However, if the content of Ti... of aluminum by TiC [J]. Metall Trans A, 1985, A16(11): 2065-2068. [2] Banerji A, Reif W. Development of Al-Ti-C grain refiners containing TiC [J]. Metall Trans A, 1986, A17(12): 2127-2136. [3......
& Nonferrous Alloys, 2002, 4: 18-19 [9] LIU Y H, LIU X F, LI T B, BIAN X F, ZHANG J Y. Grain refining effect of Al-Ti-C master alloy on Mg-Al alloys[J]. The Chinese Journal of Nonferrous Metals.... The Al4C3 or Al-C-O hypotheses are still the reasonable mechanisms for the grain refinement of Mg-Al magnesium alloys by carbon and other compounds containing carbon [4-9]. C2Cl6 was used as grain refiner......
and discussion 3.1 Phase composition of samples sintered by different processes We had carried out a series of researches on fabrication of Ti3AlC2 with different raw materials, such as Ti/Al/C... [J]. Prog Solid St Chem, 2000, 28: 201-281. [4] PIETZKA M, SCHUSTER J C. The ternary boundary phase of the quaternary system Ti-Al-C-N[A]. In Leuven Proceedings, Part A: Commision of the European......
morphology even dendritic morphology with the reaction temperature reaching up to 1200 °C. Key words: Al-Ti-B alloy; TiB2; forming process; three-dimensional morphology 1 Introduction Al-Ti-B master alloys... and gain-refining performance of Al-Ti-C grain refiner [J]. Journal of Rare Earths, 2006, 24: 596-601. [10] CHEN Ya-jun, XU Qing-yan, HUANG Tian-you. Refining performance and long time efficiency of Al-Ti......
℃保温24 h均匀化制度,陈星霖等[23]采用490 ℃保温24 h的均匀化制度,但合金的均匀化热处理又对其后续加工起着决定性的作用.为此,本文作者研究5059铝合金在均匀化热处理过程中的组织演变与扩散动力学,旨在优化其均匀化热处理工艺,为实际生产提供理论依据. 1 实验 以纯铝,纯镁,纯锌,纯铜和Al-Mn,Al-Cr,Al-Zr,Al-Ti-C中间合金为原料制备研究所需的5059铝合金,名义成分如表1所示.先在780~800 ℃将纯铝熔化,然后依次加入纯Cu,Al-Mn,Al-Cr,Al-Zr和纯Zn,纯Mg等原料,除去表面浮渣后,加入Al-Ti-C中间合金细化晶粒,再加入0.2%~0.4%的C2Cl6排渣除气,然后置于铁模中铸造成坯.铸锭冷却后从铸锭中心切取试样,试样尺寸(长×宽×高)为10 mm×10 mm×10 mm.均匀化实验在箱式固溶炉中进行,然后于室温空冷,均匀化......
of new ultralight Mg-Li-Al-Gd alloys[D]. Chongqing: Chongqing University, 2014. [13] 李 明, 郝 海, 张爱民, 宋迎德, 张兴国. Al-Ti-C中间合金对Mg-8Li-3Al合金组织和性能的影响[J]. 特种铸造及有色合金, 2013, 33(1): 81-84. LI Ming, HAO Hai, ZHANG Ai-ming, SONG Ying-de, ZHANG Xing-guo. Effects of Al-Ti-C master alloy on microstructure and mechanical properties of Mg-8Li-3Al alloy[J]. Special Casting & Nonferrous Alloys, 2013, 33(1): 81-84......
mechanism in the Al/Al-Ti-B system [J]. Acta Materialia, 2015, 84: 292-304. [13] LIU Xiao-teng, HAO Hai, ZHU Xiao-xu, ZHANG Xing-guo. Grain refining effect of Mg by novel particle cluster-containing Al-Ti-C... undercooling represent a potent nucleation potency of the nucleating substrate in Al/Al2O3 system [10]. While in aspect of grain refining, apart from nucleating agents such as Al-Ti-B in Al alloy and Al-Ti......
University. School of Material Science and Engineering, 2009: 1-69. [6] 肖政兵, 邓运来, 唐建国, 等. Al-Ti-C与Al-Ti-B 晶粒细化剂的Zr中毒机理[J]. 中国有色金属学报, 2012, 22(2): 372-378.XIAO Zhengbing, DENG Yunlai, TANG Jianguo, et al. Poisoning mechanism of Zr on grain refiner of Al-Ti-C and Al-Ti-B[J]. The Chinese Journal of Nonferrous Metals, 2012, 22(2): 372-378. [7] HE Yongdong, ZHANG Xinming, CAO Zhiqiang. Effect of Minor Cr, Mn......
and properties of AZ31 alloy [D]. Zhengzhou: Zhengzhou University, 2006: 53-58. [7] 柳延辉, 刘相法, 李廷斌, 边秀房, 张均艳. Al-Ti-C中间合金对Mg-Al合金的晶粒细化作用[J]. 中国有色金属学报, 2003, 13(3): 622-625.LIU Yan-hui, LIU Xiang-fa, LI Ting-bin, BIAN Xiu-fang, ZHANG Jun-yan. Grain refining effect of Al-Ti-C master alloy on Mg-Al alloys[J]. The Chinese Journal of Nonferrous Metals, 2003, 13(3): 622-625. [8] 汪凌云, 潘复生, 丁培道, 曹建勇, 章宗和......
[J]. Journal of Alloys and Compounds, 2006, 425(1/2): 245-250. [7] 肖政兵, 邓运来, 唐建国, 陈 祺, 张新明. Al-Ti-C与Al-Ti-B晶粒细化剂的Zr中毒机理[J]. 中国有色金属学报, 2012, 22(2): 371-378. XIAO Zheng-bing, DENG Yun-lai, TANG Jian-guo, CHEN Qi, ZHANG Xin-ming. Poisoning mechanism of Zr on grain refiner of Al-Ti-C and Al-Ti-B[J]. The Chinese Journal of Nonferrous Metals, 2012, 22(2): 371-378. [8] 廖成伟, 陈闻天, 陈 欢, 付建平, 潘春旭. 原料添加顺序对氟盐法......