Results 251 to 260 of about 109,607,141 (279)

Hot Ductility of the 17-4 PH Stainless Steels

Journal of Materials Engineering and Performance, 2016
The mechanisms of loss of hot ductility and the mechanical behavior of 17-4 PH alloys were investigated using hot tensile testing at temperatures between 700 and 1100 °C and strain rates of 10−4, 10−2, and 10−1 s−1. Scanning electron microscopy was used in conjunction with the results of the tensile tests to find the temperature region of loss of ...
V. Herrera Lara, L. Guerra Fuentes, O. Covarrubias Alvarado, A. Salinas Rodriguez, E. Garcia Sanchez   +4 more
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Aging reactions in a 17-4 PH stainless steel

Materials Chemistry and Physics, 2002
Abstract Microstructural development and aging reactions in a commercial 17-4 PH (precipitation hardening) stainless steel have been investigated. It is found that after solution treatment, the steel produces a uniform matrix, which consists chiefly of lath martensite with micro-twins.
C.N. Hsiao, C.S. Chiou, J.R. Yang
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Kinetics of precipitation in 17–4 PH stainless steel

Materials Science and Technology, 1989
AbstractThe sequence of precipitation and its kinetics in 17–4 PH (precipitation hardening) stainless steel were studied by observing the electrical resistivity and microstructure of the alloy during isothermal aging at various temperatures in the range 320–600°C.
U. K. Viswanathan, P. K. K. Nayar, R. Krishnan   +2 more
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Aging kinetics of 17-4 PH stainless steel

Materials Chemistry and Physics, 2009
Abstract The influence of aging condition and the precipitation kinetics of 17-4 PH stainless steel (AISI 630) were studied in this paper. The effect of aging temperature and time in terms of tempering parameter on the strengthening behavior of this steel was modeled and analyzed by means of artificial neural networks (ANNs). The hardening, overaging
H. Mirzadeh, A. Najafizadeh
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ARMCO 17-4 PH

Alloy Digest, 1989
Abstract ARMCO 17-4 PH, a precipitation hardening stainless steel, is widely accepted in a broad range of industries. High strength, excellent corrosion resistance, ease of heat treatment and good weldability make it an important alloy to designers and engineers.
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Activated gas nitriding of 17-4 PH stainless steel

Surface and Coatings Technology, 2006
Results of the investigation of nitrided precipitation-hardened steel 17-4 PH surface have been presented. The layers have been created as a result of the gas nitriding process in a partly dissociated ammonia. Hydrogen chloride admixture to ammonia was used as a steel surface activator.
P. Kochmański, J. Nowacki
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Effects of aging on the microstructure of 17-4 PH stainless steel

Materials Science and Engineering: A, 1988
Microstructures developed in commercial 17-4 PH precipitation-hardened stainless steel after different heat treatments have been studied. The martensite formed in this alloy has been found to be of a lath morphology having a dislocated substructure.
U.K. Viswanathan, S. Banerjee, R. Krishnan   +2 more
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Characteristics of Interdiffusion between 17-4 PH Steel and Nickel

Metallurgical and Materials Transactions A, 2008
The characteristics of interdiffusion between precipitation-hardened 17-4 PH grade stainless steel and nickel were studied in the temperature range of 900 °C to 1100 °C, using diffusion couples of these two materials. The diffusion coefficients of the major diffusing elements Fe, Ni, Cr, and Cu were evaluated for this multicomponent system.
A. Laik, P.S. Gawde, K. Bhanumurthy, G.B. Kale   +3 more
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Intergranular and general Corrosion behaviour of 17‐4 PH weldments

Materials and Corrosion, 1995
Abstract17‐4 PH stainless steel was welded autogenously by Tungsten Inert Gas welding process. The effect of various pre‐ and postweld thermal treatments on intergranular corrosion (IGC) and general corrosion resistance of base, weld and heat affected zones was stu‐died using electrochemical techniques.Intergranular and general corrosion resistance of ...
K. S. Raja, K. Prasad Rao
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Injection Molding of 17-4 PH Stainless Steel

SAE Technical Paper Series, 1984
<div class="htmlview paragraph">17-4 PH stainless steel has been successfully formed by powder metallurgy (P/M) injection molding. Injection molding is a relatively new P/M technique. In this process, metal powder is mixed with a plastic binder, and the part shape is injection molded as in plastics fabrication practice.
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