金属学报  1987, Vol. 23 Issue (2): 129-241

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微量Ti对Al-Zn-Mg合金沉淀过程和显微组织参数的影响

林肇琦;赵刚

东北工学院;东北工学院

EFFECT OF Ti ON PRECIPITATION AND MICROSTRUCTURAL PARAMETERS OF AN Al-Zn-Mg ALLOY

LIN Zhaoqi; ZHAO Gang (Northeast Institute of Technology; Shenyang) (Manuscript received 1 August; 1985)

林肇琦;赵刚. 微量Ti对Al-Zn-Mg合金沉淀过程和显微组织参数的影响[J]. 金属学报, 1987, 23(2): 129-241.
, . EFFECT OF Ti ON PRECIPITATION AND MICROSTRUCTURAL PARAMETERS OF AN Al-Zn-Mg ALLOY[J]. Acta Metall Sin, 1987, 23(2): 129-241.

摘要 参考文献 相关文章 Metrics 全文: PDF(2111 KB)   摘要: 本文利用硬度、光学显微镜和透射电镜研究了微量Ti(0.15％)对Al-5.0Zn-1.8Mg合金的沉淀过程、临界形核温度(T′_c)和显微组织参数的影响.结果表明,微量Ti能显著细化晶粒,但无抑制再结晶和提高T′_c的能力.低温时效(T_aT′_c),Ti又有相反的作用,能使MPt显著粗化和降低硬度.但在任一时效温度(120—200℃),含Ti合金的GBP和PFZ均比无Ti合金小和窄.Ti对沉淀过程和组织参数的这种影响,可用Ti原子团参与了GP区形核和含Ti合金过剩空位浓度低的观点来说明. Abstract：The effect of an additive of 0.15 wt-% Ti in the Al-5.0Zn-1.8Mg alloy upon the precipitation, critical nucleation temperature, T'_c, and structural parameters has been investigated by means of hardness test as well as optical and TEM observations. The results showed that a trace additive of Ti may impel considerably the refinement of the grains of the alloy, but no more inhibition of its recrystallization and increase of T'_c.Ti may retard the growth of MPt, increase the density and the hardness of the alloy under lower temperature aging, namely, T_a T'_c. Furthermore, at any aging temperature between 120-200℃, the GBP and PFZ of the Ti-containing alloy are always finer and narrower than that of one free from Ti. It seems to be explained that influence of Ti addition on the precipitation and structural parameters would be caused by the participation of the Ti atom clusters in the nucleation of GP zone and the low concentration of excess vacancies in the Ti-containing alloy. 收稿日期: 1987-02-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 林肇琦 赵刚 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1987/V23/I2/129 1 杉山貞彦,福井利安.溶接学会誌,1966;35(11) :70 2 Mondolfo L F. Met Mater 1971; 5(6) : 207 3 Hernaez J, Madronero A. Weld J 1972; 51(6) : 281 4 Mudrack K P. Schweissen+Schneiden 1960; 12(2) : 45 5 馬場義雄,日本金属学会誌,1967;31:507 6 馬場義雄,日本金属学会誌,1967;31:513 7 馬場義雄,轻金属,1974;24:547 8 Grove C A, Judd G.Metall Trans 1973; 4: 1023 9 Chen C, Judd G. Metall Trans 1978; 9A: 553 10 林肇琦,封冰,孙贵经,杨胜坤.金属学报,1983;19:A197 11 林肇琦,朱及良,孙贵经,杨胜坤.金属学报,1984;20:A54 12 林肇琦,孙贵经,胡维平,杨胜坤.金属学报,1985;21:A119 13 林肇琦,赵刚,孙贵经,杨胜坤.金属学报,1985;21:A419 14 Embury J D, Nicholson R B. Acta Metall 1965; 13: 403 15 Noble B. Acta Metall 1968; 16: 393 16 Holl H A. J Inst Met 1964/65; 93: 364 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed