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Author: James Aleszka Publisher: ISBN: Category : Scanning electron microscopes Languages : en Pages : 114
Book Description
This report presents the findings of a scanning electron microscope study of the tensile, fatigue, and impact fracture characteristics of a carbon steel; two high-strength, low-alloy steels; and a high-strength steel weldment. Tension and fatigue specimens were tested in as-received, hydrogen-embrittled, and temper-embrittled conditions, while impact specimens were tested in the as-received condition only. The failure mode of embrittled and unembrittled weldments containing induced weld defects was also studied.
Author: James Aleszka Publisher: ISBN: Category : Scanning electron microscopes Languages : en Pages : 114
Book Description
This report presents the findings of a scanning electron microscope study of the tensile, fatigue, and impact fracture characteristics of a carbon steel; two high-strength, low-alloy steels; and a high-strength steel weldment. Tension and fatigue specimens were tested in as-received, hydrogen-embrittled, and temper-embrittled conditions, while impact specimens were tested in the as-received condition only. The failure mode of embrittled and unembrittled weldments containing induced weld defects was also studied.
Author: G.M. Boyd Publisher: Elsevier ISBN: 1483192504 Category : Technology & Engineering Languages : en Pages : 137
Book Description
Brittle Fracture in Steel Structures emphasizes the prevention of brittle fracture in structures fabricated from mild and low alloy steel operating at normal ambient temperatures. This book is divided into seven chapters. Chapter 1 provides the historical background and summarizes numerous case histories of brittle fractures. The nature of the phenomenon and factors that influence brittle fracture, including various methods of testing to determine the notch ductilities of different steels are described in Chapters 2 to 4. The fifth chapter elaborates the design considerations affecting the choice of steel for structural applications. Chapter 6 reviews the main methods for assessing the degree of notch ductility needed for different applications, while Chapter 7 deliberates practical procedures, recommended by the Navy Department Advisory Committee on Structural Steels, for assessing the suitability of different steels for particular applications. This publication is beneficial to metallurgists and welders intending to acquire knowledge of mild steel structures fabricated by welding from rolled steel plates and sections.
Author: Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
This report presents the findings of a scanning electron microscope study of the tensile, fatigue, and impact fracture characteristics of a carbon steel; two high-strength, low-alloy steels; and a high-strength steel weldment. Tension and fatigue specimens were tested in as-received, hydrogen-embrittled, and temper-embrittled conditions, while impact specimens were tested in the as-received condition only. The failure mode of embrittled and unembrittled weldments containing induced weld defects was also studied.
Author: J. K. Scott Publisher: ISBN: Category : Stainless steel Languages : en Pages : 57
Book Description
The fracture characteristics of two high-strength, low-alloy structural steels (ASTM A-588 and A-242) and two stainless steels (AISI 416 and 17-4PH) were analyzed under tensile, fatigue, and impact loading conditions. The effects of hydrogen- and temper-embrittlement on the materials' behavior when fractured under tensile and fatigue conditions were investigated. The structural steels were found to be unsusceptible to temper-embrittlement. ASTM A-588 was found to be susceptible to hydrogen-embrittlement; A-242 was not found susceptible, but this could be attributed to the abnormally low toughness condition of the as-received material. The stainless steels were found to be unsusceptible to the hydrogen-charging procedure performed in this study. Mechanical tests showed large variations in values for the tempered stainless steeel specimens, although the fracture surfaces appeared very similar. These findings reaffirmed the generally accepted concept that visual observation is not a sufficient method for determining temper-embrittlement, but must be combined with mechanical testing to reach valid conclusions.
Author: Peter P. Puzak Publisher: ISBN: Category : Steel Languages : en Pages : 36
Book Description
The yield strength range for steels from 180 to 210 ksi is currently covered by four weldable alloys of the following nominal chemical analysis: 18%Ni-8%Co-3%Mo maraging steel, 12%Ni-5%Cr-3%Mo maraging steel, 9%Ni-4%Co-0.20%C quenched and tempered (Q and T) steel, and 10%Ni-8%Co-2%Cr-1%Mo-0.10%C Q and T steel. Broad ranges of fracture resistance have been reported for these materials based on various fracture tests, and this report presents information for material selection and design guidance by providing an analysis of the interactions between the metallurgical and mechanical parameters that contribute to the fracture resistance of plate products. Definitions of the interaction between the metallurgical and the mechanical aspects are developed with the use of the Dynamic Tear (DT) test and the Ratio Analysis Diagram (RAD). (Author).
Author: Jacqueline K. Scott Publisher: ISBN: Category : Aluminum alloys Languages : en Pages : 46
Book Description
The fracture characteristics of two steels (ASTM A-516 and A-607) and two aluminums (ASTM B-209, alloys 5083 and 6061) were analyzed under tensile, fatigue, and impact loading conditions. The effect of hydrogen embrittlement on the steels' behavior when fractured under tensile and fatigue conditions was investigated.
Author: James Aleszka
Author: James Aleszka
Author: James Aleska
Author: James Aleska
Author: G.M. Boyd
Author: Charles W. Marschall
Author: 
Author: J. K. Scott
Author: William S. Pellini
Author: Peter P. Puzak
Author: Jacqueline K. Scott