Download or read book Analysis of ferrite Data from Production Stainless Steel Pipe Welds written by Terry L. Hebble and published by . This book was released on 1984 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stainless Steel Weld Metal written by C. N. MacCowan and published by . This book was released on 1989 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neural Network Model for Predicting Ferrite Number in Stainless Steel Welds written by and published by . This book was released on 1998 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Predicting the ferrite content in stainless steel welds is desirable in order to assess an alloy's susceptibility to hot cracking and to estimate the as-welding properties. Several methods have been used over the years to estimate the ferrite content as a function of the alloy composition. A new technique is described which uses a neural network analysis to determine the ferrite number. The network was trained on the same data set that was used to generate the WRC-1992 constitution diagram. The accuracy of the neural network predictions is compared to that for the WRC-1992 diagram as well as another recently proposed method. It was found that the neural network model was approximately 20% more accurate than either of the other two methods. In addition, it is suggested that further improvements to the neural network model, including the consideration of process variables, can be made which lead to even better accuracy.

Download or read book A Study of the Ferrite fissuring Relationship in Austentic Stainless Steel Weld Metals written by Daniel Frank Spond and published by . This book was released on 1975 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transformation of Ferrite in Weldable Stainless Steel During Welding written by S. Shanov and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Factors Influencing the Measurement of Ferrite Content in Austentic Stainless Steel Weld Metall Using Magnetic Instruments written by E. W. Pickering and published by . This book was released on 1986 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Ferrite in Type 347 Stainless Steel Weld Deposits written by W. L. Fleischmann and published by . This book was released on 1953 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Welding Metallurgy of Stainless Steels written by Erich Folkhard and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: When considering the operational performance of stainless steel weldments the most important points to consider are corrosion resistance, weld metal mechanical properties and the integrity ofthe weldedjoint. Mechanical and corrosion resistance properties are greatly influenced by the metallurgical processes that occur during welding or during heat treatment of welded components. This book is aimed, there fore, at providing information on the metallurgical problems that may be encountered during stainless steel welding. In this way we aim to help overcome a certain degree of insecurity that is often encountered in welding shops engaged in the welding of stainless steels and is often the cause of welding problems which may in some instances lead to the premature failure of the welded component. The metallurgical processes that occur during the welding of stainless steel are of a highly intricate nature. The present book focuses in particular on the signif icance of constitution diagrams, on the processes occurring during the solidification of weld metal and on the recrystallization and precipitation phenomena which take place in the area of the welds. There are specific chapters covering the hot cracking resistance during welding and the practical welding of a number of different stainless steel grades. In addition, recommendations are given as to the most suitable procedures to be followed in order to obtain maximum corrosion resistance and mechanical properties from the weldments.

Download or read book Modeling the Ferrite Austenite Transformation in the Heat Affected Zone of Stainless Steel Welds written by and published by . This book was released on 1997 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The diffusion-controlled ferrite-austenite transformation in stainless steel welds was modeled. An implicit finite-difference analysis that considers multi-component diffusion was used. The model was applied to the Fe-Cr-Ni system to investigate the ferrite- austenite transformation in the heat-affected zone of stainless steel weld metal. The transformation was followed as a function of time as the heat-affected zone was subjected to thermal cycles comparable to those experienced during gas-tungsten arc welding. The results showed that the transformation behavior and the final microstructural state are very sensitive to the maximum temperature that is experienced by the heat-affected zone. For high maximum exposure temperatures ((approximately) 1300° C), the ferrite formation that occurs at the highest temperatures is not completely offset by the reverse ferrite dissolution at lower temperatures. As a result, for high temperature exposures there is a net increase in the amount of ferrite in the microstructure. It was also found that if compositional gradients are present in the initial ferrite and austenite phases, the extent of the transformation is impacted.

Download or read book Final Reports from the Welding Research Council written by E. W. Pickering and published by . This book was released on 1986-09-01 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book EBSD Quantification of Delta Ferrite in Austenitic Stainless Steel Welds written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ferrite Measurement and Control in Duplex Stainless Steel Welds written by D. J. Kotecki and published by . This book was released on 1991 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stainless Steel Weld Metal Prediction of Ferrite Content written by Damian J. Kotecki and published by . This book was released on 2007-02-01 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ANSI AWS A4 2 86 Standard Procedures for Calibrating Magnetic Instruments to Measure the Delta Ferrite Content of Austenitic Stainless Steel Weld Metal written by American Welding Society and published by . This book was released on 1986 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Welding of 18 13 1 Stainless Steel written by United Kingdom Atomic Energy Authority and published by . This book was released on 1954 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standard Procedures for Calibrating Magnetic Instruments to Measure the Delta Ferrite Content of Austenitic and Duplex Austenitic ferritic Stainless Steel Weld Metal written by American Welding Society Committee on Filler Metal and published by . This book was released on 1991 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Delta Ferrite Content on the Mechanical Properties of E308 16 Stainless Steel Weld Metal written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of ferrite content on the properties of type 308 stainless steel shielded metal-arc (SMA) welds were investigated. Welds were made at four levels of ferrite content ranging from 2 to 15 FN (Ferrite Number). Creep and tensile tests were performed. Specimens were aged at 1100/sup 0/C (593/sup 0/C) for times up to 10,000 h (36 Ms) and Charpy V-notch impact tests were performed. Chemical analysis of the original deposits, Magne-gage evaluations, and metallographic evaluation of tested specimens were made. The E308-16 stainless steel electrodes were formulated to produce SMA welds with 2, 5, 9, and 15 FN. The ferrite number was made to vary by varying the nickel and chromium concentrations. Magne-gage determinations revealed that as-welded structures contained an average of 1.8, 4.2, 9.6, and 14.5 FN, respectively. Chemical anslysis of these deposits revealed no unusually high concentrations of tramp elements that would significantly affect mechanical properties. The extra low-ferrite electrodes were made with a different core wire, which produced deposits with slightly higher molybdenum concentrations. This variation in molybdenum should affect properties only minimally. From these chemical analyses and a constitutional diagram, ferrite concentrations were calculated, and the results correlated with the Magne-gage values.