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Semiaustenitic Precipitation-hardenable Stainless Steels

Semiaustenitic Precipitation-hardenable Stainless Steels
Author: D. C. Ludwigson
Publisher:
Total Pages: 186
Release: 1961
Genre: Heat resistant alloys
ISBN:

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The semiaustenitic precipitation-hardenable stainless steels remain austenitic on cooling rom a solution heat treatment at about 1950 F. In this form they are readily fabricable. Subsequent treatment at about 1400 or at about 1725 F depletes the austenite of Cr and C to the extent that martensite forms on cooling to room temperature or -100 F, respectively. Final hardening is effected by tempering, or aging, at 750 to 1100 F. The semiaustenitic precipitation-hardenable stainless steels may be obtained as transformed at the mill by cold rolling. In this condition they lack the good formability of solution-heat-treated material. However, the fabricator need only temper them to obtain very high strengths. These steels have a combination of good formability, high strength, and excellent corrosion resistance that is not easily matched by other materials.


Fatigue-Fracture Properties of a Semi-Austenitic Precipitation Hardening Stainless Steel

Fatigue-Fracture Properties of a Semi-Austenitic Precipitation Hardening Stainless Steel
Author: R. Farrara
Publisher:
Total Pages: 33
Release: 1988
Genre:
ISBN:

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Fatigue and fracture toughness properties were determined for STA 60 precipitation hardening stainless steel used in the structure of the 105-mm Light Gun. Fatigue properties (S-N crack for initiation and da/dN versus crack growth rate) and fracture toughness (JIc) were measured on both parent sheet and welded joints for a range of heat treatments including fully re-heat treated and peak aged (450C), overaged as in production (530C), and as-welded joints not re-heat treated. Keywords: Stainless steels; Precipitation hardening steels; 105-mm Light gun; Fracture toughness; Crack propagation; Fatigue; Gun carriages. (jes).


New Developments in High-strength Stainless Steels

New Developments in High-strength Stainless Steels
Author: A. F. Hoenie
Publisher:
Total Pages: 48
Release: 1966
Genre: Martensitic stainless steel
ISBN:

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This report presents information on the physical metallurgy, chemical composition, mechanical and physical properties, corrosion resistance, fabrication, and cleaning of several of the newer high-strength stainless steels. The alloys covered include one semiaustenitic precipitation-hardenable stainless steel, PH14-8Mo, and the following martensitic precipitation- hardenable stainless steels: PH13-8Mo, 15-5PH, Custom 455, AM-363, AM-362, and AFC-77. Also included is 17-4PH as a sheet and strip product.


Stainless Steels

Stainless Steels
Author: Joseph R. Davis
Publisher: ASM International
Total Pages: 594
Release: 1994-01-01
Genre: Technology & Engineering
ISBN: 9780871705037

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ASM Specialty Handbook® Stainless Steels The best single-volume reference on the metallurgy, selection, processing, performance, and evaluation of stainless steels, incorporating essential information culled from across the ASM Handbook series. Includes additional data and reference information carefully selected and adapted from other authoritative ASM sources.