... V. The thickness direction necking would lead to fracture rapidly. The void coalescence directly caused by damage has been observed in Stage VI. Keywords miniature uniaxial tensile test, P91 steel, deformation regimes, crack generation, fracture mechanism Introduction In the last decade, mechanical...

... strength–enhanced ferritic P91 steel were studied. CNT treatment was performed at 1,050°C and air cooled for 1 h and also at 760°C and air cooled for 2 h. In double austenitization–based normalizing heat treatment, steel was austenitized at 1,050°C and air cooled for 1 h and then normalized...

... the duration of a creep test with the specimen rupture. Keywords P91 steel, creep, welding Copyright VC 2017 by ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959 160 RIVOLTA ET AL. ON PROPERTIES OF P91 WELD METAL 161 Introduction The most modern steam power plants reach...

... behavior, the mechanisms of which may vary with temperature. Effect of crack closure and DSA on the FCG properties of P91 steel and SS 316L(N) welds will be discussed. The DSA mechanism has been identified from the activation energy for the process determined from the temperature dependence of the crack...

... inspection and the way in which this information can be used to give added value to creep-fatigue crack initiation endurance results. The evidence gathered from this study is also examined. 30 09 2013 16 12 2013 31 01 2014 creep-fatigue testing P91 steel interlaboratory study post...