本文選題：Inconel + 合金��； 參考：《中國(guó)有色金屬學(xué)報(bào)》2015年12期

【摘要】：采用等溫?zé)釅嚎s實(shí)驗(yàn)研究DP工藝Inconel 718合金在變形溫度為900~1060℃,應(yīng)變速率為0.001~0.5 s~(-1)條件下的高溫流變行為,分析摩擦因數(shù)和絕熱溫升對(duì)真應(yīng)力-真應(yīng)變曲線的影響,并對(duì)摩擦引起的流變應(yīng)力誤差進(jìn)行了修正,建立了基于應(yīng)變量的應(yīng)變本構(gòu)模型。結(jié)果表明:隨著應(yīng)變速率的增大和變形溫度的降低,摩擦因數(shù)的影響趨于明顯,變形激活能和材料常數(shù)是應(yīng)變量的函數(shù)。對(duì)引入應(yīng)變量參數(shù)建立的用于預(yù)測(cè)工藝處理的Inconel718合金不同變形量時(shí)的流變應(yīng)力本構(gòu)模型進(jìn)行誤差分析,其實(shí)驗(yàn)值與預(yù)測(cè)值的相關(guān)性系數(shù)為0.998,平均相對(duì)誤差絕對(duì)值為3.87%,能夠用于準(zhǔn)確預(yù)測(cè)不同變形量時(shí)合金的流變應(yīng)力值。
[Abstract]:The isothermal compression test was used to study the rheological behavior of DP Inconel 718 Alloy at a deformation temperature of 900~1060 C and the strain rate of 0.001~0.5 s~ (-1). The effect of friction factor and adiabatic temperature rise on true stress true strain curve was analyzed, and the strain error caused by friction was corrected, and the strain based on strain was established. The results show that with the increase of the strain rate and the decrease of the deformation temperature, the influence of the friction factor tends to be obvious, the deformation activation energy and the material constant are the function of the strain. The rheological stress constitutive model for the different deformation quantity of Inconel718 gold which is used to predict the process treatment is established. In the error analysis, the correlation coefficient between the actual and the predicted values is 0.998, the absolute value of the average relative error is 3.87%, and it can be used to accurately predict the rheological stress values of the alloys with different deformation quantities.
【作者單位】： 中南林業(yè)科技大學(xué)機(jī)電工程學(xué)院;中南大學(xué)粉末冶金國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家高技術(shù)研究發(fā)展計(jì)劃資助項(xiàng)目(2012AA03A514) 國(guó)家自然科學(xué)基金資助項(xiàng)目(51401242,51301209,61271356,51205031)
【分類號(hào)】：TG146.15

【共引文獻(xiàn)】

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1 司家勇;劉鋒;;δ相對(duì)Inconel 718合金組織與疲勞性能影響的研究進(jìn)展[J];材料導(dǎo)報(bào);2013年07期

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3 董洪波;王高潮;;變形工藝對(duì)Inconel718合金超塑性的影響(英文)[J];稀有金屬材料與工程;2015年02期

4 郝用興;楊松偉;郭華毅;張勇;;臺(tái)階軸胎模鍛填充不滿機(jī)理分析與對(duì)策研究[J];華北水利水電學(xué)院學(xué)報(bào);2012年05期

5 高鵬;張凱鋒;蔣少松;;漸變曲率Inconel718厚板熱彎曲成形精度與表面質(zhì)量控制[J];航空材料學(xué)報(bào);2012年06期

6 田素貴;王欣;謝君;劉臣;郭忠革;劉姣;孫文儒;;GH4169G合金熱處理期間的相轉(zhuǎn)變特征與機(jī)理分析[J];金屬學(xué)報(bào);2013年07期

7 楊長(zhǎng)勇;徐九華;顧s舠，

本文編號(hào)：2086378