Obtaining method of austenite stainless steel constitutive curve considering room temperature creeping

The present invention relates to an austenite stainless steel processing technology. A purpose of the present invention is to provide an obtaining method of an austenite stainless steel constitutive curve considering room temperature creeping. The method comprises: obtaining the original data for co...

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Bibliographische Detailangaben
Hauptverfasser: LU QUNJIE, DING HUIMING, ZHENG JINYANG, XIAO FENGQING
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The present invention relates to an austenite stainless steel processing technology. A purpose of the present invention is to provide an obtaining method of an austenite stainless steel constitutive curve considering room temperature creeping. The method comprises: obtaining the original data for constructing a constitutive curve through the tension load retention test of an austenite stainless steel material; and labeling points ([sigma]1, [epsilon]1), ([sigma]2, [epsilon]2), ..., ([sigma]n, [epsilon]n) respectively by using set stress [sigma] as horizontal ordinates and using the total strain [epsilon] as vertical coordinates, and establishing an [epsilon] change curve related to the stress [sigma] through fitting, wherein the curve is the austenite stainless steel constitutive curve considering the influence caused by room temperature creeping. Compared to the obtaining method in the prior art, the obtaining method of the present invention considers the influence of the room temperature creeping on the con