最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級(jí)檢索
水冷銅坩堝非自耗電極電弧爐熔煉鈦合金的組織及硬度研究
DOI:
作者:
作者單位:

作者簡(jiǎn)介:

通訊作者:

中圖分類號(hào):

TG146.23

基金項(xiàng)目:

吉林大學(xué)創(chuàng)新基金資助項(xiàng)目


Research on Structure and Hardness of Ti Alloy Melted by Cold-Mold Non-Consumable-Electrode Arc-Melting Process
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問(wèn)統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評(píng)論
    摘要:

    水冷銅坩堝非自耗電極電弧爐熔煉出的鈦合金試樣沿徑向方向晶體組織由激冷層的等軸晶與柱狀晶混合轉(zhuǎn)化為柱狀晶、樹枝晶一直到等軸晶?；谝痪S溫度場(chǎng)方程，建立了實(shí)驗(yàn)條件下液固界面的溫度梯度隨時(shí)間的關(guān)系及溫度梯度與凝固速度之商和時(shí)間的關(guān)系，利用這些關(guān)系結(jié)合固液界面穩(wěn)定性動(dòng)力學(xué)原理解釋了徑向上晶體組織變化的原因。不同位置上的硬度不同，結(jié)合相應(yīng)位置上的單位面積上的晶界長(zhǎng)度LA及單位體積內(nèi)的界面積Sv，基于塑性變形理論進(jìn)行了合理解釋。

    Abstract:

    The structures of Ti alloy melted by cold-Cu mold non-consumable-electrode arc furnace change from equiaxed structure in chill layer to columnar structure, dendritic structure and equiaxed structure along the radial direction in turn. Based on temperature epuation, the relation between temperature grads of liquid- solid interface and time, the relation between the ratio of temperature grads of liquid- solid interface to solidification velocity and time were established. Used these relations and liquid-solid interface stability dynamic, the structure change was explained. The hardness on different location were different, which can be explained by theory of plastic deformation combined with quantitative metallogenetic.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

于思榮 張新平 何鎮(zhèn)明 劉耀輝.水冷銅坩堝非自耗電極電弧爐熔煉鈦合金的組織及硬度研究[J].稀有金屬材料與工程,2004,33(3):246~250.[Yu Sirong, Zhang Xinping, He Zhenming, Liu Yaohui. Research on Structure and Hardness of Ti Alloy Melted by Cold-Mold Non-Consumable-Electrode Arc-Melting Process[J]. Rare Metal Materials and Engineering,2004,33(3):246~250.]
DOI：[doi]

復(fù)制
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:
  • 最后修改日期:2002-08-28
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: