Results 261 to 270 of about 109,607,141 (279)

Localised corrosion behaviour of 17–4 PH stainless steel

Materials Science and Technology, 1990
AbstractThe localised corrosion behaviour of 17–4 PH (precipitation hardenable) stainless steel, in the solution annealed, aged, and overaged conditions, was studied in acidic chloride and sulphuric acid media using the potentiodynamic anodic polarisation method. Electrochemical potentiokinetic reactivation (EPR) studies and microstructural examination
U. Kamachi Mudali, A. K. Bhaduri, J. B. Gnanamoorthy   +2 more
openaire   +1 more source

Limitations of 17- 4 PH Metallurgical, Mechanical and Corrosion Aspects

CORROSION 2003, 2003
Abstract The use of 17-4 PH in sour service started long before the establishment of MR0175, and its coverage in this document has varied widely over the years. Thus, the real significance of the statement "according to NACE" had become less and less defined.
T. Cassagne, M. Bonis, C. Duret, J.L. Crolet   +3 more
openaire   +1 more source

Investigating Additively Manufactured 17-4 PH for Structural Applications

Journal of Materials Engineering and Performance, 2019
This study takes a benchmarking approach to the processing of 17-4 PH using selective laser melting by having two facilities that use their own best practices to process materials. Hot isostatic pressing (HIP) is used by both facilities as part of the thermomechanical processing following printing to explore whether it can improve the consistency of ...
Devin E. Burns, Andelle Kudzal, Brandon McWilliams, Juan Manjarres, Doug Hedges, Peter A. Parker   +5 more
openaire   +1 more source

The rate of dynamic recrystallization in 17-4 PH stainless steel

Materials & Design, 2010
Abstract The hot working behavior of 17-4 PH stainless steel (AISI 630) was studied by hot compression test at temperatures of 950–1150 °C with strain rates of 0.001–10 s −1 . The progress of dynamic recrystallization (DRX) was modeled by the Johnson–Mehl–Avrami–Kolmogorov (JMAK) kinetics equation.
H. Mirzadeh, A. Najafizadeh
openaire   +1 more source

Optimization of the Heat Treatment of a 17-4 PH Stainless Steel by Dilatometric Technique

Journal of ASTM International, 2008
Abstract The precipitation-hardening steels are generally required when high mechanical performances at high temperatures are requested both statically and dynamically. The requested combination of mechanical strength and toughness is achieved by means of an age-hardening treatment which can be carried out at different temperatures and ...
GEROSA, RICCARDO, RIVOLTA, BARBARA, A. Sala   +2 more
openaire   +3 more sources

Impact properties of sintered and wrought 17–4 PH stainless steel

Powder Metallurgy, 2006
Charpy V notch (CVN) impact testing was conducted on full size and subsize specimens of sintered and wrought 17–4 PH stainless steel (17–4 PH SS) in the as sintered and H900 heat treated conditions. Test geometries correspond to the American Society for Testing and Materials (ASTM) and Metal Powder Industries Federation (MPIF) impact testing standards.
P. Suri, B. P. Smarslok, Randall M. German   +2 more
openaire   +1 more source

An Acoustical Emission-Damping Fatigue Study of a 17-4 PH Steel

Journal of Testing and Evaluation, 1974
Abstract The acoustic emissions emitted from a 17-4 PH stainless steel were monitored while the specimen was undergoing fatigue testing in the torsional mode. Below the cyclical stress sensitivity limit (CSSL) of the material no abnormal emissions were detected, while at and above CSSL emissions were detected which could be attributed to
LE Willertz, DO Hunter
openaire   +1 more source

Failure of a 17-4 PH stainless steel sailboat propeller shaft

Engineering Failure Analysis, 2003
Abstract In this study, a 17-4 PH precipitation hardening stainless steel propeller shaft failed in use when installed in a sailboat working in a marine environment. Failure analysis was conducted on the propeller shaft. Results indicate that the failure was caused by the fracture of the propeller shaft by torsional fatigue and stress corrosion ...
C.Fahir Arisoy, Gokhan Başman, M.Kelami Şeşen   +2 more
openaire   +1 more source

Embrittlement of laser surface-annealed 17-4 PH stainless steel

Materials Science and Engineering: A, 2001
Abstract Stress corrosion cracking and fatigue crack growth behavior were determined in 17-4 PH stainless steel under various metallurgical conditions, including the H900 (482°C/1 h), H1025 (552°C/4 h) aging and laser surface annealing treatments. Peak-aged (H900) specimens locally irradiated by laser beam consisted of a portion of composite region ...
L.W Tsay, T.Y Yang, M.C Young
openaire   +1 more source

Failures of 17-4 PH Steel Parts in Non Sour Environments

CORROSION 2014, 2014
Abstract 17-4 PH material is a Cr-Ni low carbon martensitic stainless steel containing Cu as the precipitation hardening element, to be solution annealed and aged (or double aged) to acquire different levels of strength, usually higher than 100 ksi (689 MPa) Yield Strength. This material is adopted for parts like stems and springs, where
Guilherme Emygdio, Annelise Zeemann
openaire   +1 more source