-1的等溫壓縮條件下將IN706高溫合金分別壓縮30%、45%和60%,研究了IN706高溫合金的流變應(yīng)力。采用指數(shù)型Zener-Hollomon方程來(lái)描述應(yīng)變和溫度對(duì)熱變形的影響,同時(shí)在考慮應(yīng)變補(bǔ)償?shù)谋緲?gòu)方程中考慮了α、n、Q和lnA等不同材料常數(shù)的應(yīng)變效應(yīng),并對(duì)相關(guān)系數(shù)R和平均絕對(duì)相對(duì)誤差進(jìn)行了驗(yàn)證。在構(gòu)建本構(gòu)方程的基礎(chǔ)上,繪制了IN706高溫合金的熱加工圖,并根據(jù)Murty準(zhǔn)則給出了不穩(wěn)定區(qū)域。結(jié)果表明,應(yīng)變速率0.1 s-1、溫度1313~1353 K是合理的熱加工工藝參數(shù)窗口。;IN706 superalloy is particularly sensitive to the parameters of hot working process. The flow stress of the IN706 superalloy was investigated during reduction deformation of 30%, 45%, and 60% under the isothermal compression conditions of temperature at 1143–1393 K and strain rate at 0.01, 0.1, 0.5, and 1 s-1. The exponent-type Zener-Hollomon equation was used to describe the impact of strain and temperature on the thermal deformation. Meanwhile, the strain effect of various material constants, such as α, n, Q, and lnA, was considered in the constitutive equation considering the strain compensation, and the correlation coefficient R and the average absolute relative error were verified. On the basis of constitutive equation construction, the hot processing map of IN706 superalloy was drawn, and the instability region was obtained based on the Murty criterion. Results show that the reasonable thermal working process parameter window is strain rate of 0.1 s-1 and temperature of 1313–1353 K."/>

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