-1·mol-1。隨著置氫溫度的升高，Sieverts常數(shù)呈先增大后逐漸減小的趨勢。分析了Ti6Al4V合金在置氫處理過程中的相組成和相變。"/>

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
Ti6Al4V合金相變及吸氫熱力學(xué)研究
作者:
作者單位:

1.安徽三聯(lián)學(xué)院，安徽 合肥 230601;2.合肥工業(yè)大學(xué)，安徽 合肥 230009;3.西南技術(shù)工程研究所，重慶 400039

作者簡介:

通訊作者:

中圖分類號:

TG146.2

基金項(xiàng)目:

國家自然科學(xué)基金項(xiàng)目（面上項(xiàng)目）、安徽高校自然科學(xué)研究重點(diǎn)項(xiàng)目、安徽三聯(lián)學(xué)院自然科學(xué)重點(diǎn)項(xiàng)目


Phase Transformations and Thermodynamics Analysis of Hydrogen Absorption of Ti6Al4V Alloy
Author:
Affiliation:

1.Anhui Sanlian University, Hefei 230601, China;2.Hefei University of Technology, Hefei 230009, China;3.Southwest Technology and Engineering Research Institute, Chongqing 400039, China

Fund Project:

National Natural Science Foundation of China (51875157); University Natural Science Research Project of Anhui Province (KJ2019A0894); Key Program of Natural Science of Anhui Sanlian University (KJZD2019005)

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

    在823~1023 K的氫化溫度范圍內(nèi)對Ti6Al4V合金進(jìn)行了壓力-成分等溫線測試，研究了Ti6Al4V合金的相變和吸氫熱力學(xué)。結(jié)果表明，當(dāng)Ti6Al4V合金在不同的氫化溫度下進(jìn)行置氫處理時，氫壓隨著氫含量的增加而逐漸升高。由于Ti6Al4V合金中原始β相的存在，在置氫處理過程中，每個壓力-成分等溫線只有一個傾斜的壓力平臺。根據(jù)Vant's Hoff定律，壓力平臺區(qū)的焓變值和熵變值分別為 -50.7±0.26 kJ/mol和-138.4±0.69 J·K-1·mol-1。隨著置氫溫度的升高，Sieverts常數(shù)呈先增大后逐漸減小的趨勢。分析了Ti6Al4V合金在置氫處理過程中的相組成和相變。

    Abstract:

    Thermodynamics of hydrogen absorption and phase transformations in Ti6Al4V alloy were investigated by pressure-composition (P-C) isotherm measurement at hydrogenation temperatures in the range of 823~1023 K. Results show that the hydrogen pressure is increased with increasing the hydrogen content when Ti6Al4V alloy is hydrogenated at different temperatures. Only one sloped pressure plateau occurs in each P-C isotherm during the hydrogenation treatment because of the existence of original β phase in Ti6Al4V alloy. According to Vant's Hoff law, the values of enthalpy and entropy of the pressure plateau region are -50.7±0.26 kJ/mol and -138.4±0.69 J·K-1·mol-1, respectively. The Sieverts constant increases firstly and then decreases gradually with increasing the hydrogenation temperature. The phase composition and phase transformation of Ti6Al4V alloy during the hydrogenation treatment were analyzed.

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

張小雪,杜江飛,彭菲菲,肖興茂,袁寶國.Ti6Al4V合金相變及吸氫熱力學(xué)研究[J].稀有金屬材料與工程,2021,50(9):3043~3049.[Zhang Xiaoxue, Du Jiangfei, Peng Feifei, Xiao Xingmao, Yuan Baoguo. Phase Transformations and Thermodynamics Analysis of Hydrogen Absorption of Ti6Al4V Alloy[J]. Rare Metal Materials and Engineering,2021,50(9):3043~3049.]
DOI：10.12442/j. issn.1002-185X.20210108

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:2021-02-04
  • 最后修改日期:2021-04-30
  • 錄用日期:2021-05-12
  • 在線發(fā)布日期: 2021-09-26
  • 出版日期: 2021-09-24