Transactions of Materials and Heat Treatment

Title：Study of recovering law of cavity-type inner defect in heavy forging

Authors： Tsinghua University Yuan Chaolong Zhong Yuexian Ma Qingxian

Unit：

KeyWords： Heavy forging Defect Recovering Modeling method

ClassificationCode：TG316

year,vol(issue):pagenumber：2002,27(3):3-6

Abstract：

In order to reduce the waste of internal cavities defect,the recovering law and reliability of internal cavities defect in heavy forging were investigated by using modeling method.Defect could be completely recovered and the procedure of recovering was determined by the status value of defect.The recovering process was carried on under the condition of the status value less than the critical status value of recovering.It needed some time to recover defect.The law could be utilized to recover the internal cavity\|type defect in heavy forging.

Funds：

国家自然科学基金资助项目 (597750 56)

Reference：

1　KAndo,SSato,FYao,YKobayasi.APreliminarystudyoncrackhealingbehaviourofSi3N4/SiCcompositeCeramics.Fatigue&FratureofEngineeringMaterials&Structures,21:119～122
2　ARBoccaccini,CBPonton,KKChawla.Developmentandhe alingofmatrixmicrocracksinfibrereinforcedglassmatrixcomposites:assessmentbyinternalfriction.MaterialsScienceandEngineering,A241(1998):141～150
3　钟志平大型筒体锻件组织性能控制与高温缺陷修复实验研究清华大学博士论文,1998
4　韩静涛大型饼类锻件夹杂形缺陷形成机理及控制锻造工艺研究清华大学博士论文,1995
5　金宁大锻件孔隙性缺陷的压合与焊合规律的研究及高温栅的研制清华大学博士论文,1995

Service：

【This site has not yet opened Download Service】【Add Favorite】