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單晶高溫合金HRS定向凝固過程凝固參數(shù)的計算機檢測與分析
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TG146.15 TP274

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Computer Detection and Analysis of Solidification Parameters During HRS Directional Solidification of Single Crystal Superalloys
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    摘要:

    建立了一套爐前計算機數(shù)據(jù)自動采集和控制系統(tǒng)，該系統(tǒng)可對HRS定向凝固過程的溫度數(shù)據(jù)進行自動采集。對單昌高溫合金DD98定向凝固過程濕度場的現(xiàn)場測定和分析的結(jié)果表明：該系統(tǒng)現(xiàn)場采集的數(shù)據(jù)平穩(wěn)，較好地解決了干擾問題；在恒定的加熱溫度和抽拉速率下，溫度梯度、糊狀區(qū)寬度等凝固參數(shù)是不斷變化的，起始端的溫度梯度最高，凝固后期溫度梯度趨于平穩(wěn)，糊狀區(qū)的寬度隨著凝固的進行呈增加的趨勢。

    Abstract:

    A computer automatic data acquisition and control system which can be used for data acquisition and reduction of temperature field during high rate directional solidification(HRS) process has been developed. The system has been applied to the investigation of DD98 single crystal superalloy solidification process. The result shows that the data are stable and the problem of interference at workshop is resolved, the solidification parameters, such as temperature gradient, width of mushy zone, are variable with the stationary heating temperature and withdrawal rate. The temperature gradient is highest in the starting stage and becomes stable during the late stage of solidification. The width of mush zone is increased in the solidification process.

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李金國 金濤 等.單晶高溫合金HRS定向凝固過程凝固參數(shù)的計算機檢測與分析[J].稀有金屬材料與工程,2002,(3):197~200.[Li Jinguo, Jin Tao, Zhao Nairen, Wang Zhen, Sun Xiaofeng, Guan Hengrong, Hu Zhuangqi. Computer Detection and Analysis of Solidification Parameters During HRS Directional Solidification of Single Crystal Superalloys[J]. Rare Metal Materials and Engineering,2002,(3):197~200.]
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  • 最后修改日期:2001-04-24
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