نتایج جستجو برای: ni hard 4 cast iron

تعداد نتایج: 1617811  

2012
H Mohebbi

In order to assess the remaining life of cast iron assets in the water sector, an understanding of their fracture and fatigue characteristics is necessary. The present work is concerned with the toughness and Paris crack growth behaviour of cast iron materials with a range of microstructures, taken from trunk mains currently in service. When considered with other data from the literature, the r...

2015
F. Fernandes T. Polcar A. Loureiro A. Cavaleiro

In the present investigation the effect of the substrate dilution on room and high temperature (550 and 700 oC) tribological behaviour of nickel based hardfaced coating deposited by plasma transferred arc onto a grey cast iron was investigated and compared to the uncoated grey cast iron. At room temperature, the wear loss of coatings was independent of the substrate dilution and similar to the ...

2009
G. Quitté

Introduction: The numerous nucleosynthetic isotopic anomalies found in refractory inclusions, in presolar grains, and in special phases carried by chondrites suggest that the matter constituting the solar system results from a mixing between different sources. Recently, Ni nucleosynthetic anomalies have been found in various meteorites, including iron meteorites, ureilites, chondrites [e.g. 1-3...

2005
Doru M. Stefanescu

Human civilization has evolved from the Stone Age, through the Bronze Age to reach the Iron Age around 1500 B.C. There are many to contend that today we are living in the age of engineered materials, yet the importance of iron castings continues to support the thesis that we are still in the Iron Age. Cast iron, the first man-made composite, is at least 2500 years old. It remains the most impor...

2010
Monika Barbara Foryś Dorota Kurowicka Bas Peppelman Roger M. Cooke Pieter van Gelder

This thesis concerns grey cast iron gas pipelines in Amsterdam managed by the regional gas and electricity grid operator Liander. Due to brittle nature and aging process of grey cast iron, probability of explosion in this type of pipelines seems to be increasing. A model for the gas explosion probability is proposed. Multiple factors are taken into consideration, including pipe’s age, length, w...

Journal: :Dalton transactions 2010
Luca Pilia Flavia Artizzu Davide Espa Luciano Marchiò Maria Laura Mercuri Angela Serpe Paola Deplano

Structural and electronic features of the novel title sulfur-oxygen donor ligand Me(2)pipto (1), are discussed in comparison with those of the corresponding dithione ligand Me(2)pipdt. A tuning of the electronic and coordination properties of the ligand, relatable to the soft/hard power of the donor atoms, is achieved. Coordination properties have been checked towards Ni(II) and Fe(III) cations...

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