English  |  正體中文  |  简体中文  |  Items with full text/Total items : 73032/73032 (100%)
Visitors : 23243667      Online Users : 564
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version

    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/68998

    Title: 應用鑄鍛生產高、中強度與高延性鋁合金
    Authors: 張哲維;Chang,Che-wei
    Contributors: 機械工程學系
    Keywords: 鑄/鍛;拉伸性質;微結構;Cast/forge hybrid process;Tensile property;Microstructures
    Date: 2015-07-28
    Issue Date: 2015-09-23 14:52:40 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 本實驗主要合金成份以Al-8Zn-2Mg-1.5Cu-xZr合金(x為0.15、0.49)、Al-1.0Mg-0.6Si-0.2Cu合金及Al-1.2Mg-1.0Si-1.0Cu-0.15Zr合金做為實驗材料,澆鑄船型模、Y-block金屬模尺寸為100×40×100 mm。船型模鑄件均質化、退火後固溶再T6處理;Y-block鑄件施以同樣均質化與退火後兩道次熱鍛60%變形量,最後固溶和T6處理。將時效後的兩種材料加工成拉伸試棒並測試拉伸性質,比較不同試棒的拉伸性質和微結構。
    ;Three groups of alloys of Al-8Zn-2Mg-1.5Cu-xZr(x=0.15、0.49)、Al-1.0Mg-0.6Si-0.2Cu and Al-1.2Mg-1.0Si-0.15Zr were prepared and melted in this study to get boat molds and Y-block permanent mold castings in size of 100×40×100mm. After homogenization and annealing, the boat mold casting were removed for solution treatment and T6 treatment; the Y-block castings would subject to two passes of hot forged with 60% deformation then removed for solution treatment and T6 treatment. After aging all samples were machined to the standard tensile test specimens to get tensile strengths of different samples. Microstructures and tensile properties of different samples were compared and discussed.
    After the cast/forge hybrid process with 60% reduction by hot deformation, solution and aging treatment, the Al-8Zn-2Mg-1.5Cu-0.49Zr alloy samples obtained high strength of (UTS) 583MPa and 8.4% in elongation; the Al-1.2Mg-1.0Si-1.0Cu-0.15Zr alloy samples acquired moderate strength of (UTS) 420MPa and 10% in elongation; the Al-1.0Mg-0.6Si-0.2Cu alloy samples got excellent elongation of 16% with proper strength (UTS) of 310MPa.
    Appears in Collections:[機械工程研究所] 博碩士論文

    Files in This Item:

    File Description SizeFormat

    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明