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| THE EFFECT OF PHASE TRANSFORMATION DURING CREEP ON THE EXTRAPOLATION OF CREEP TEST |
| KUNG CHING-PING;LIU SHAO-GU;LIN PAO-CHUN Institute of Metal Research;Academia Sinica |
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Cite this article:
KUNG CHING-PING;LIU SHAO-GU;LIN PAO-CHUN Institute of Metal Research;Academia Sinica. THE EFFECT OF PHASE TRANSFORMATION DURING CREEP ON THE EXTRAPOLATION OF CREEP TEST. Acta Metall Sin, 1963, 6(1): 51-58.
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Abstract In order to study whether the extrapolation method of creep test by an elevation of temperature through activation energy described in a previous paper is applicable whenphase transformations occur during creep,creep tests were made on four different alloys(three heat-resisting steels and one aluminium alloy)at different temperatures with cons-tant stress.Before the creep tests,specimens were so treated that appropriate phasetransformations were expected to occur under the temperatures of tests.The experi-mental results showed that,in the temperature range investigated,there existed a cons-tant“activation energy of creep”for two alloys,but not for the other two.When phasetransformations mentioned above were made negligible,a constant activation energy ofcreep was always obtained in the same temperature range for all alloys.This indicates that,the so called“activation energy of creep”depends not only uponthe composition of material,but also upon the microstructure.A preliminary analysis shows tha,when phase transformations occur during creep,the applicability of this extrapolation method depends upon the type of phase trans-formation taken place.
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Received: 18 January 1963
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[1] 孔庆平、林保军、葛庭燧:金属学报,1960,5,48。
[2] 庄育智、李有柯:物理学报,1954,10,321。
[3] 庄育智、刘嘉乐:金属学报,1956,1,337．
[4] #12
[5] Heiskanen,S.:Doctorate Thesis,Technical University,Helsinki,1959．
[6] #12
[7] #12
[8] #12
[9] Hardy,H.K.,Heal,T.J.:Progress in Metal Physics,1954,vol.5,p.143．
[10] Giedt,W.H.,Sherly,O.D.,Dorn,J.E.:Trans.AIME,1955,203,57．
[11] #12c |
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