EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book The Effect of Microstructure on the Fracture Toughness of the 300 Grade Maraging Steel

Download or read book The Effect of Microstructure on the Fracture Toughness of the 300 Grade Maraging Steel written by Vishnoo W. Shahani and published by . This book was released on 1974 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Effect of Microstructure and Strength on the Fracture Toughness of an 18 No 300 Grade Maraging Steel

Download or read book The Effect of Microstructure and Strength on the Fracture Toughness of an 18 No 300 Grade Maraging Steel written by Joseph Adam Psioda and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Aging Kinetics in 300 Grade Marage Steel

Download or read book Aging Kinetics in 300 Grade Marage Steel written by J. J. Hauser and published by . This book was released on 1966 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The relation of fine structure of an 18Ni 300 maraging steel to mechanical properties and fracture toughness was investigated. Sheet specimens were annealed by 1500 F austenizing for 1 hr followed by air cooling to room temperature. Some specimens were aged at 900 F for various times, while other specimens were aged for 1 hr at temperatures from 300 to 1300 F. Microstructure was studied by replication and by transmission electron microscopy. Aging kinetics at 900 F were very rapid; nearly 90 per cent of maximum strength was attained after 1 hr exposure. Between room temperature and 900 F, microstructure changed from a precipitate free blocky martensite to one that had a finely dispersed precipitate throughout the martensite structure. At higher temperatures than 900 F overaging caused a decrease in toughness. Strength and hardness increased rapidly from 400 to 1000 F. The precipitate was identified as Ni3Mo with possibly some Ni3Ti also present. The effect of test temperature on fracture toughness was evaluated at temperatures from +100 to -320 F. A distinct ductile-brittle transition occurred between -100 and -320 F. Fracture toughness decreased from a room-temperature value of 212 ksi ?in. to 50 ksi ?in at -320 F.

Book Maraging Steels

Download or read book Maraging Steels written by W Sha and published by Elsevier. This book was released on 2009-10-26 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maraging steels are high-strength steels combined with good toughness. They are used particularly in aerospace and tooling applications. Maraging refers to the ageing of martensite, a hard microstructure commonly found in steels.Maraging steels: modelling of microstructure, properties and applications covers the following topics: Introduction to maraging steels; Microstructure of maraging steels; Mechanical properties of maraging steels; Thermodynamic calculations for quantifying the phase fraction and element partition in maraging systems and precipitation hardening steels; Quantification of phase transformation kinetics in maraging steels; Quantification of age hardening in maraging steels; Maraging steels and overageing; Precipitation hardening stainless steel; Applications of artificial neural network on modelling maraging steel properties.With its distinguished authors, Maraging steels: modelling of microstructure, properties and applications is a standard reference for industry and researchers concerned with maraging steels and modelling as well as users of maraging steels in the aerospace and tooling sectors. The book includes both conventional maraging steels and precipitation hardened (PH) stainless steels. Provides an overview of maraging steels including microstructure and mechanical properties Reviews thermodynamic calculations for quantifying the phase fraction and element partition in maraging steels Includes chapters on the quantification of phase transformation kinetics and age hardening in maraging steels

Book Masters Theses in the Pure and Applied Sciences

Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis, (CINDAS) *at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity was transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 19 (thesis year 1974) a total of 10,045 theses titles from 20 Canadian and 209 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. The organization of Volume 19 is identical to that of past years. It consists of theses titles arranged by discipline and by university within each discipline.

Book Scientific and Technical Aerospace Reports

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1978 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book NASA Technical Memorandum

Download or read book NASA Technical Memorandum written by and published by . This book was released on 1979 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Dislocation Modelling of Physical Systems

Download or read book Dislocation Modelling of Physical Systems written by M.F. Ashby and published by Elsevier. This book was released on 2013-10-22 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dislocation Modelling of Physical Systems contains the Proceedings of the International Conference held at Gainesville, Florida, USA on June 22-27, 1980. The book emphasizes the growing interest in relating dislocation theoretic concepts to engineering problems. Topic areas chosen ranged from the fundamental, such as properties of single dislocations, to the more applied, such as fracture. The papers are grouped specifically based on the main topics they discuss. These topics include fracture; point defects and dislocations; structure dependence of mechanical behavior; properties of single dislocations; plasticity and geometry of deformation; internal friction effects; and boundaries.

Book THE EFFECT OF TRACE IMPURITIES ON THE STRESS CORROSION CRACKING SUSCEPTIBILITY AND FRACTURE TOUGHNESS OF 18 Ni 300 GRADE MARAGING STEEL

Download or read book THE EFFECT OF TRACE IMPURITIES ON THE STRESS CORROSION CRACKING SUSCEPTIBILITY AND FRACTURE TOUGHNESS OF 18 Ni 300 GRADE MARAGING STEEL written by R. P. M. Procter and published by . This book was released on 1970 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of 18 Ni (300 grade) maraging steels of overall commercial purity but containing also deliberate impurity additions of sulphur, phosphorus, carbon, chromium and silicon plus manganese was studied. The fracture toughness and stress-corrosion resistance (determined using plane-strain fatigue-precracked specimens tested in 3.5% sodium chloride solution) of these steels was compared to the fracture toughness and stress-corrosion resistance of a commercial purity 18 Ni (300 grade) maraging steel with no deliberate impurity additions, and to a similar steel prepared from special high-purity melting stock. The most important conclusions reached are that: (i) Ultra-high purity steels do not have significantly improved stress-corrosion resistance, but show useful increases in fracture toughness when the carbon content is less than 0.005%; (ii) Simultaneous additions of Mn plus Si result in extremely low fracture toughness values; (iii) High carbon contents (greater than 0.03%) result in marginally improved stress-corrosion resistance; (iv) High Cr contents result in rather poor stress-corrosion properties. These results were correlated with the electron transmission microstructure of the steels and the results of a fractographic analysis of the fracture surfaces. (Author).

Book Scientific and Technical Aerospace Reports

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1974 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Stress Corrosion New Approaches

Download or read book Stress Corrosion New Approaches written by H. Lee Craig and published by ASTM International. This book was released on 1976 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Elevated Temperature Effects on Fatigue and Fracture

Download or read book Elevated Temperature Effects on Fatigue and Fracture written by Robert S. Piascik and published by ASTM International. This book was released on 1997 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: