Ultrahigh Strength, High Fracture Toughness Low-Alloy Steel: DMR-1700

Edité par Defence Research & Development Organisation, 2019

818651466X / 9788186514665

Vendeur : Masalai Press, Oakland, CA, Etats-UnisMasalai Press

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300 pp., illustrations, diagrams, bibliography, index. "Steels for several high-technology applications, such as military hardware and aerospace, need to possess ultrahigh strength (UHS; minimum yield strength of 1380 MPa (200 ksi)) coupled with high fracture toughness in order to meet the requirement of minimum weight while ensuring high reliability. Broadly, there are four classes of UHS steels: (a) low-alloy steels typified by AISI 4340, (b) high-alloy maraging steels typified by 18Ni1700 steel, (c) high-alloy secondary hardening steels typified by AF1410, and (d) carbide-free bainitic steels. Distinctive characteristics of the UHS low-alloy, maraging, secondary hardening and bainitic steels have been presented in the monograph. In such applications, though performance of materials is of prime consideration, cost and availability make low-alloy steels an attractive option. However, the use of low-alloy steels has often been limited by their low fracture toughness. A comprehensive research programme was launched at the Defence Metallurgical Research Laboratory (DMRL) during mid-1980s to develop a cost effective low-alloy alternative to the highly alloyed 18Ni1700 maraging steel. The monograph describes the more than three decades of R&D work that led to the research-based development of a new UHS low-alloy steel, designated DMR-1700, its production and its defence applications. The strength and toughness combination of DMR-1700 steel is better than the best reported values of low-alloy steels AISI 4340, 300M and D6ac, and is comparable to that of 18Ni1700 maraging steel. Given this result, DMR-1700 steel has been successfully demonstrated for (a) one-to-one replacement of maraging steel for missile casings, (b) substantial reduction of weight of the base plate for 120 mm long range mortar and (c) superior ballistic performance for armour applications. To address cost effectiveness of DMR-1700, DMRL pursued ladle refining and vacuum degassing + continuous casting route and found that the steel met the chemistry and properties successfully.".…

N° de réf. du vendeur 9788186514665IND082924

Titre
Ultrahigh Strength, High Fracture Toughness Low-Alloy Steel: DMR-1700
Auteur
G. Malakondaiah & P. Rama Rao
Éditeur
Defence Research & Development Organisation
Année de publication
2019
État de l'article
Fine
Reliure
Hardcover
ISBN à 10 chiffres
818651466X
ISBN à 13 chiffres
9788186514665
Poids de l'article
25,3 onces

Masalai Press

Oakland, CA, Etats-Unis

Vendeur avec une évaluation de 5 étoiles

Vendeur AbeBooks depuis 28 décembre 2011

Frais d'expédition à l'intérieur de ce pays : Etats-Unis

Article5 à 14 jours ouvrés2 à 4 jours ouvrés
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Masalai Press has been selling books on the internet since 2000, and has been involved in book selling since 1985. Customer service and accurate descriptions are a priority. Masalai Press specializes in books about the Pacific Islands, especially Papua New Guinea. Masalai Press is the regional representative of the University of Papua New Guinea Press, and has been co-publishing with the UPNG Press since 2008.

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Papua New Guinea, Pacific Islands, Asia, Linguistics, Foreign Language Dictionaries, Sciences

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Masalai Press

CA, Etats-Unis