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

+高級檢索
粉末冶金TA15鈦合金高溫塑性變形加工圖
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:


Processing Map of Powder Metallurgy TA15 Titanium Alloy for High Temperature Plastic Deformation
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 參考文獻
    • |
  • 相似文獻
    • |
  • 引證文獻
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    采用Gleeble-1500熱模擬機對粉末冶金TA15鈦合金進行熱壓縮試驗。基于動態(tài)材料模型建立了粉末冶金TA15鈦合金在溫度850~1050 ℃，應(yīng)變速率0.001~10 s-1范圍內(nèi)的加工圖，并結(jié)合合金變形后的微觀組織對加工圖進行了解釋。結(jié)果表明：在T=1000 ℃/=0.001 ~0.01 s-1的區(qū)域內(nèi)，功率耗散效率η值大于60%，合金可能發(fā)生了大晶超塑性變形。在T=850 ℃/=0.001~0.01 s-1、T=900 ℃/=1~10 s-1、T=950 ℃/=0.01~1 s-1和T=1050 ℃/=1~10 s-1區(qū)域內(nèi)η值小于30%，其變形后的試樣出現(xiàn)縱向開裂或有粗大的β晶粒。在T=900~950 ℃/=0.001~0.01 s-1、T=950~1000 ℃/=1~10 s-1和T=1000~1050 ℃/=0.01~0.1 s-1區(qū)域內(nèi)為動態(tài)再結(jié)晶區(qū)，η值為30%~60%，出現(xiàn)動態(tài)再結(jié)晶或回復(fù)現(xiàn)象

    Abstract:

    Hot compressing tests on powder metallurgy (P/M) TA15 titanium alloy have been conducted by a Gleeble-1500 simulator. A processing map for P/M TA15 titanium alloy in the temperature range of 850~1050 oC and the strain rate range of 0.001~10 s-1 was developed on the basis of a dynamic materials model and interpreted by microstructure observation. The results show that the alloy possesses superplasticity at the peak of power dissipation efficiency when deformed at T=1000 oC/=0.001 ~0.01 s-1. The alloy exhibits instability regime at T=850 oC/=0.001~0.01 s-1, T=900 oC/=1~10 s-1, T=950 oC/=0.01~1 s-1 and T=1050 oC/=1~10 s-1 with the power dissipation efficiency lower than 30%. Surface cracks and coarse β grains are observed. The deformation characteristics of P/M TA15 alloy at T=900 ~950 oC/=0.001~0.01 s-1, T=950 ~1000 oC/=1~10 s-1 and T=1000~1050 oC/=0.01~0.1 s-1, are recrystallization with the power dissipation efficiency of 30%~60%. Dynamic recrystallization or dynamic recovery can be observed in these domains.

    參考文獻
    相似文獻
    引證文獻
引用本文

王 琪,錢 鋒,易丹青,王宏偉,王 斌,臧 冰.粉末冶金TA15鈦合金高溫塑性變形加工圖[J].稀有金屬材料與工程,2013,42(9):1854~1858.[Wang Qi, Qian Feng, Yi Danqing, Wang Hongwei, Wang Bin, Zang Bing. Processing Map of Powder Metallurgy TA15 Titanium Alloy for High Temperature Plastic Deformation[J]. Rare Metal Materials and Engineering,2013,42(9):1854~1858.]
DOI：[doi]

復(fù)制
文章指標(biāo)
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2012-09-20
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: