Design of Electrode Coatings for Bimetallic Welds

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Design of Electrode Coatings for Bimetallic Welds

Dissertation•

Design of Electrode Coatings for Bimetallic Welds

Deepak Bhandari, Rajeev Mehta, Rahul Chhibber, Navneet Arora

28 Apr 2017-

TL;DR: In this paper, the authors present a table of contents and a list of tables and lists of figures, including the following categories: Table 1 Table 2 Table 3 Table 4 Table 5 Table 6

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Abstract: ii TABLE OF CONTENTS iii-vii LIST OF TABLES viii-x LIST OF FIGURES xi-xv CHAPTER

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Citations

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Welding Metallurgy of

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Structural Steels

01 Jan 1987

991 citations

Journal Article•DOI•

Slag-Metal Reactions in Submerged Arc Welding:An Overview

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Zuruzi Bin Abu Samah, R. S. Chandel, T. Sritharan

01 Apr 1997

13 citations

Shielded Metal Arc Welding Consumables for Advanced High Strength Steels

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Stephen Liu, G. L. Fredrickson, M. Q. Johnson, G. R. Edwards

01 Feb 1992

TL;DR: In this paper, the effect of flux ingredients on high strength steel welding was investigated using submerged arc welding and the results showed definite influences of the flux ingredients, both on weld bead morphology and chemical composition of the weld metal.

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Abstract: : To achieve the goal of developing adequate shielded metal arc (SMA) welding consumables for advanced high strength steels, the complex relationship between flux coating and base metal must be understood. This report is concerned with the effect of flux ingredients on high strength steel welding. Submerged arc (SA) welding was first used to investigate the performance of 45 experimental flux compositions chosen from the CaCO3-SiO2-K2SiO3-CaF2-Fe system. Bead-onplate welds were produced on 3/4 in. (19.1 mm) thick HSLA-100 steel plates using a 1/16 in. (1.59 mm) diameter Airco AX-140 welding wire. A 1.5 kj/ mm (38.1 kJ/in.) linear heat input was maintained for all welds. To evaluate the effect of the experimental fluxes, two empirical basicity indexes were used: the basicity index (BI) and the Zeke basicity index (Bz). Experimental results showed definite influences of the flux ingredients, both on weld bead morphology and chemical composition of the weld metal. As the basicity of the flux increases, the weld metal oxygen content decreases and the weld metal carbon equivalent (Pcm.) increases. As weld metal oxygen content decreases, the amount of acicular ferrite and Charpy-V-notch impact toughness of the weld metal are observed to increase. The submerged arc welding results also showed that while BI can describe satisfactorily the behavior of basic fluxes, Bz is more appropriate for the acidic fluxes. Using the submerged arc welding data, four fluxes were selected for the extrusion of experimental SMA electrodes. Welding was performed at similar conditions as the submerged arc welds. Slag coverage, weld bead morphology, and weld metal microstructures confirmed the results obtained in submerged arc welding.

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5 citations

High Temperature Reactor Materials: Progress of HTR-M Projects

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Derek Buckthorpe, R. Couturier, J. Hegemann, K. Kuhn, B. C. Friedrich, P. J. Ennis, H. Rantala, B. Riou, J. van der Laan, M. Davies, A. Vreling, G. Haag, A. Buenaventura - Show less +9 more

01 Jan 2003

2 citations

References

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Open Access

More filters

Welding Metallurgy of

[...]

Structural Steels

01 Jan 1987

991 citations

"Design of Electrode Coatings for Bi..." refers background or result in this paper

...These results are consistent with those in the reference (Kou, 2002 [86]), however the reason for this is not very clear....
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...Weld metal chemistry is an important factor in determining the mechanical and metallurgical properties of the weld (Davis, 1977 [33]; Kou, 2002 [86]; Palm, 1972 [116]; Polar, 1991 [127]; Tuliani, 1972 [150])....
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...This can be explained from the fact that Si 4+ metallic cation from slag is reduced and increases the silicon content in the weld pool-slag interface during electrode positive polarity (Kou, 2002 [86])....
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...SiO2 dissociates into silicon and oxygen during slag-metal reactions and thereby raises the silicon content in the weld (Kou, 2002 [86])....
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...6 Weld metal chemistry Weld metal chemistry is an important factor in determining the mechanical and metallurgical properties of the weld (Davis, 1977 [33]; Kou, 2002 [86]; Palm, 1972 [116]; Polar, 1991 [127]; Tuliani, 1972 [150])....
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Book•

Experiments with Mixtures: Designs, Models and the Analysis of Mixture Data

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John A. Cornell

01 Jan 1981

TL;DR: In this paper, the original Mixture Problem is described and models for exploring the Entire Simplex Factor Space are presented, including matrix algebra, least squares, and the analysis of variance.

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Abstract: Preface to the Third Edition. Preface to the Second Edition. Introduction. The Original Mixture Problem: Designs and Models for Exploring the Entire Simplex Factor Space. The Use of Independent Variables. Multiple Constraints on the Component Proportions. The Analysis of Mixture Data. Other Mixture Model Forms. The Inclusion of Process Variables in Mixture Experiments. Additional Topics. Matrix Algebra, Least Squares, and the Analysis of Variance. Data Sets from Mixture Experiments with Partial Solutions. Bibliography and Index of Authors. Answers to Selected Questions. Appendix. Index.

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964 citations

Journal Article•

Experiments with Mixtures: Designs, Models, and the Analysis of Mixture Data

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Mario Peruggia

01 Jan 2003-Journal of the American Statistical Association

520 citations

"Design of Electrode Coatings for Bi..." refers background or methods in this paper

...2 Four ingredients tetrahedron (Cornell, 2002 [29])....
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...Several classical mixture design approaches are available (Cornell, 2002 [29]; Anderson and McLean, 1974 [2])....
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...1 Three ingredient simplex region (Cornell, 2002 [29])....
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...…research plan 34 Figure 4.1 Schematic diagram of the two and three layer bimetallic weld methodology 36 Figure 4.2.1 Three ingredient simplex region (Cornell, 2002 [29]) 37 Figure 4.2.2 Four ingredients tetrahedron (Cornell, 2002 [29]) 38 Figure 4.3.1 Experimental ternary phase diagram of…...
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...…layer bimetallic weld methodology 36 Figure 4.2.1 Three ingredient simplex region (Cornell, 2002 [29]) 37 Figure 4.2.2 Four ingredients tetrahedron (Cornell, 2002 [29]) 38 Figure 4.3.1 Experimental ternary phase diagram of CaO-CaF2-SiO2 system (Kalisz, 2013 [74]) 40 Figure 4.3.2 Confined design…...
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Journal Article•DOI•

Application of response surface methodology for predicting weld bead quality in submerged arc welding of pipes

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V. Gunaraj¹, N. Murugan²•Institutions (2)

Kumaraguru College of Technology¹, Coimbatore Institute of Technology²

15 Apr 1999-Journal of Materials Processing Technology

TL;DR: In this paper, a four-factor five-level central composite rotatable design matrix with full replication for planning, conduction, execution and development of mathematical models is proposed for predicting the weld bead quality and selecting optimum process parameters for achieving the desired quality and process optimization.

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502 citations

Additional excerpts

..., 2008 [7]; Castillo, 1996 [22]; Fussel, 2012 [47]; Gunaraj, 1999 [50]; Kumar et al....
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Book•

Design of Experiments: A Realistic Approach

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Virgil L. Anderson, Robert A. McLean

01 Feb 1974

TL;DR: A review of some basic statistical concepts some intermediate data analysis concepts A Scientific Approach to Experimentation Completely Randomized Design (CRD) Randomized Complete Block Design (RCBD) Nested (Hierarchical) and Nested Factorial Designs Split Plot Type Design Latin Square Type Designs 2n Factorial Experiments (Complete and Incomplete Blocks) Fractional Factorial Experimentations for Two-Leveled Factors Three-Level Factorial Experience (FFE) Mixed FactorialExperiments and Other Incomplete Block Designs Response Surface Exploration Appendices

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Abstract: Review of Some Basic Statistical Concepts Some Intermediate Data Analysis Concepts A Scientific Approach to Experimentation Completely Randomized Design (CRD) Randomized Complete Block Design (RCBD) Nested (Hierarchical) and Nested Factorial Designs Split Plot Type Design Latin Square Type Designs 2n Factorial Experiments (Complete and Incomplete Blocks) Fractional Factorial Experiments for Two-Leveled Factors Three-Level Factorial Experiments Mixed Factorial Experiments and Other Incomplete Block Designs Response Surface Exploration Appendices

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429 citations