Ti-5553合金的高溫變形行為
發(fā)布人：上海艾荔艾合金股份有限公司www.shailiai.cn
更新時(shí)間：2016-01-26
在Gleeble?1500熱模擬試驗(yàn)機(jī)上，當(dāng)應(yīng)變速率為0.1~10 s?1，變形溫度為800~860 ℃時(shí)，采用高溫壓縮試驗(yàn)對(duì)Ti-5553鈦合金熱壓縮變形中流變應(yīng)力行為進(jìn)行研究。
Ti-5553合金的高溫變形行為Hot deformation behavior of Ti-5553 alloy在Gleeble?1500熱模擬試驗(yàn)機(jī)上，當(dāng)應(yīng)變速率為0.1~10 s?1，變形溫度為800~860 ℃時(shí)，采用高溫壓縮試驗(yàn)對(duì)Ti-5553鈦合金熱壓縮變形中流變應(yīng)力行為進(jìn)行研究。研究結(jié)果表明：應(yīng)變速率和變形溫度的變化顯著地影響合金流變應(yīng)力的大小，流變應(yīng)力隨著變形溫度的升高而降低，隨應(yīng)變速率的提高而增大，當(dāng)流變應(yīng)力達(dá)到峰值后趨于平穩(wěn)。熱變形過程的流變應(yīng)力可采用雙曲正弦本構(gòu)關(guān)系來描述，平均激活能為611 kJ/mol。
The flow stress behavior of Ti-5553 Titanium alloy during hot compression deformation was studied by thermal simulation test at the deformation temperature of 800?860 ℃ and the strain rate of 0.1?10 s?1?on the Gleeble?1500 thermal and mechanical simulator. The results show that the flow stress is controlled by both strain rate and deforming temperature. The flow stress decreases with the increase of deforming temperature, and increases with the increase of strain rate until the flow stress reaches the peak value, then the flow stress remains constant. The flow behaviors are described by the hyperbolic sine constitutive equation, and the average activation energy calculated is?? ?611 kJ/mol.
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AILIAI has been a reliable partner and supplier of sophisticated and high-quality semi-finished products maed of alloys. In dialogue with our customers, we optimise our products to meet the specific application requirements. AILIAI develops the best alloy material solutions for current and future challenges.
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