简介:EvaluatingreflactorycoatingsofPUCBbinders:apracticalapproach;Evaluationofstructuralandhigh-temperaturemagnesiumalloys;FATIGUEPROPERTIESOFDIE-CASTMAGNESIUMALLOYAM60B;GrainrefinementofAl-Sialloy(A356)bymeltthermaltreatment;Impactofscrapuseonthepropertiesofhot-worktoolsteels;MAGNESIUMDIECASTINGALLOYAJ62xWITHSUPERIORCREEPRESISTANCE,DUCTILITYANDDIECASTABILITY。
简介:Productionofmassivecastingsfromcomplexlyalloyedhigh-wear-resistanceiron,Quiescentfillingappliedtoinvestmentcastings,ReducingSurfaceDefectsWithProperVeinReduction,Requirementsoncylinderheadalloysforhighpowerengines,SiCvs.75%FeSi:comparingpre-inoculationeffects,TheEffectsofIntensificationPressure,GateVelocity&IntermediateShotVelocityontheInternalQualityofAluminumDieCastings,Tilt-PourGating-KeyParameters.
简介:失效率是工程中最常用的可靠性指标,传统方法需要通过失效观测数据统计得出。本文根据失效是载荷与强度相互作用结果的观点,借助于动态的(与载荷作用次数有关的)载荷-强度干涉关系,推导出了失效率函数预测模型,并且从载荷分布与强度分布及其之间的关系解释了产品服役过程中失效率的变化规律,展示了载荷的分散性和强度的分散性对失效率曲线形状的影响,提供了一种借助于数学模型预测产品失效率的方法。