-1條件下的熱變形行為，利用動(dòng)態(tài)材料模型構(gòu)建了鈦鋁復(fù)合板熱加工圖，并基于熱加工圖進(jìn)行了鈦鋁復(fù)合板熱軋工藝驗(yàn)證實(shí)驗(yàn)。結(jié)果表明：鈦鋁復(fù)合板屬于正應(yīng)變速率敏感材料；在熱加工圖中變形溫度為420~460 ℃、應(yīng)變速率為1.6~6.3 s-1時(shí)，功率耗散效率達(dá)到0.64~0.72，該區(qū)域?qū)?yīng)的工藝參數(shù)適合進(jìn)行鈦鋁復(fù)合板熱軋；熱軋后實(shí)驗(yàn)板材界面結(jié)合良好，具有良好的力學(xué)性能和鈑金成形性能。鈦鋁復(fù)合板在熱軋過(guò)程中的變形機(jī)制為：變形抗力低、流動(dòng)快的鋁層在自身發(fā)生塑性變形的同時(shí)牽引著鈦層一起發(fā)生塑性變形，其中鋁層是熱變形，鈦層為冷變形。"/>

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鈦鋁復(fù)合板熱加工圖及熱軋實(shí)驗(yàn)
作者:
作者單位:

1.東華理工大學(xué) 機(jī)械與電子工程學(xué)院，江西 南昌 330013;2.有研科技集團(tuán)有限公司 有研金屬?gòu)?fù)材技術(shù)有限公司，北京 100088

作者簡(jiǎn)介:

通訊作者:

中圖分類號(hào):

TG339

基金項(xiàng)目:

東華理工大學(xué)博士科研啟動(dòng)基金 (DHBK2017123 )


Hot Processing Map and Hot Rolling Experiment of Ti-Al Clad Plate
Author:
Affiliation:

1.School of Mechanical and Electronic Engineering, East China University of Technology, Nanchang 330013, China;2.GRINM Metal Composites Technology Corporation Limited, GRINM Group Corporation Limited, Beijing 100088, China

Fund Project:

East China University of Technology Research Foundation for Advanced Talents (DHBK2017123)

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    摘要:

    采用Gleeble-3500熱模擬試驗(yàn)機(jī)進(jìn)行高溫等溫壓縮實(shí)驗(yàn)，研究了爆炸焊接鈦鋁復(fù)合板在變形溫度為300~500 ℃、應(yīng)變速率為0.1~10 s-1條件下的熱變形行為，利用動(dòng)態(tài)材料模型構(gòu)建了鈦鋁復(fù)合板熱加工圖，并基于熱加工圖進(jìn)行了鈦鋁復(fù)合板熱軋工藝驗(yàn)證實(shí)驗(yàn)。結(jié)果表明：鈦鋁復(fù)合板屬于正應(yīng)變速率敏感材料；在熱加工圖中變形溫度為420~460 ℃、應(yīng)變速率為1.6~6.3 s-1時(shí)，功率耗散效率達(dá)到0.64~0.72，該區(qū)域?qū)?yīng)的工藝參數(shù)適合進(jìn)行鈦鋁復(fù)合板熱軋；熱軋后實(shí)驗(yàn)板材界面結(jié)合良好，具有良好的力學(xué)性能和鈑金成形性能。鈦鋁復(fù)合板在熱軋過(guò)程中的變形機(jī)制為：變形抗力低、流動(dòng)快的鋁層在自身發(fā)生塑性變形的同時(shí)牽引著鈦層一起發(fā)生塑性變形，其中鋁層是熱變形，鈦層為冷變形。

    Abstract:

    The hot deformation behavior of explosive welded titanium-aluminum (Ti-Al) clad plate was studied by isothermal compression tests at 300~500 °C with strain rates of 0.1~10 s-1 on Gleeble 3500 simulated machine. The hot processing map was developed on the basis of experimental data using the principles of dynamic materials model, and the verification experiment of hot rolling process of Ti-Al clad plate was carried out based on the hot processing map. The results show that Ti-Al clad plate is a kind of positive strain rate sensitive material. The efficiency of power dissipation of 0.64~0.72 can be observed at 420~460 °C with strain rate of 1.6~6.3 s-1 in the hot processing map, and the process parameters of this region are suitable for the hot rolling of Ti-Al clad plate. After hot rolling, the interfaces of the Ti-Al clad plates are well bonded, and the plates have excellent mechanical property and good sheet metal forming property. The deformation mechanism of Ti-Al clad plate in the hot rolling process is as follows: the Al layer with low deformation resistance and fast flow can produce plastic deformation, and at the same time it can pull the Ti layer together to produce plastic deformation; in this process, the Al layer is hot deformation while the Ti layer is cold deformation.

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彭海健,胡捷.鈦鋁復(fù)合板熱加工圖及熱軋實(shí)驗(yàn)[J].稀有金屬材料與工程,2021,50(12):4218~4223.[Peng Haijian, Hu Jie. Hot Processing Map and Hot Rolling Experiment of Ti-Al Clad Plate[J]. Rare Metal Materials and Engineering,2021,50(12):4218~4223.]
DOI：10.12442/j. issn.1002-185X.20200700

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  • 收稿日期:2020-09-13
  • 最后修改日期:2021-01-26
  • 錄用日期:2021-03-08
  • 在線發(fā)布日期: 2021-12-30
  • 出版日期: 2021-12-24