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Maraging steel

About: Maraging steel is a research topic. Over the lifetime, 1728 publications have been published within this topic receiving 19886 citations. The topic is also known as: martensitic ageing steel.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the effects of cold rolling on the microstructure and mechanical properties of Fe-Ni-Mn-Mo-Ti-Cr maraging steels were studied.
Abstract: Effects of cold rolling on the microstructure and mechanical properties of Fe-Ni-Mn-Mo-Ti-Cr maraging steels were studied To investigate the microstructure and mechanical properties, optical microscopy, scanning electron microscopy, X-ray diffraction, tensile test, and hardness test were used The results show that the solution-annealing treatment in the cold-rolled steel redounds to the formation of submicrocrystalline Fe2(Mo, Ti) Laves phase particles, which are stable at high temperatures These secondary Laves phase particles prevent from recrystallization at high temperatures and correspond to semi-brittle fracture in the subsequent aging treatment

8 citations

Patent
09 Oct 1996
TL;DR: In this paper, a solution of nitrided and cold-warmed maraging steel is heated and held in a salt bath at 520 to 530 ° C for 10 to 25 minutes.
Abstract: (57) [Summary] [PROBLEMS] To provide a manufacturing technique in which a processing time is short, and good abrasion and durability are obtained. SOLUTION: A solution nitrided and cold worked maraging steel is heated and held in a salt bath at 520 to 530 ° C for 10 to 25 minutes, whereby a desired nitrided layer depth can be obtained on the surface. [Effect] Since the salt bath nitriding process time is 10 to 25 minutes, the required time is 1/10 to 1/20 as compared with the nitriding time of 4 to 6 hours by the conventional gas soft nitriding method, Productivity can be greatly increased.

8 citations

Patent
29 May 1985
TL;DR: In this article, a composite dual micro-phase billet is used for jet engine turbine blades, armour, helicopter rotor blades, car suspension stress parts or sword blades, where flat plates are used instead of cylindrical elements and the elements can be stacked alternately in mutually perpendicular arrays.
Abstract: In producing a composite steel material, cylindrical steel elements (1) are first coated with nickel, manganese, copper or a combination thereof and then packed in a mild steel can (2) to produce a non- random arrangement of the elements (1) in the can (2) and wherein the packed can (2) is extruded to form a composite dual microphase billet in which fibres of martensite in the billet are completely surrounded by austenite. Flat plates can be used instead of cylindrical elements and the elements can be stacked alternately in mutually perpendicular arrays. Other metals used are niomonics titanium or maraging steel. The billet can be used for jet engine turbine blades, armour, helicopter rotor blades, car suspension stress parts or sword blades.

8 citations

Patent
19 Aug 1977
TL;DR: In this paper, a maraging steel of superior cold workability and high working accuracy was proposed, which is obtd. by cold working steel contg. of No, Co, Mo, Ti, Al, C, etc.
Abstract: PURPOSE: To provide a maraging steel of superior cold workability and high working accuracy osing transformation-induced plasticity, which is obtd. by cold working steel contg. limited amts. of No, Co, Mo, Ti, Al, C, etc. under specified conditions. COPYRIGHT: (C)1979,JPO&Japio

8 citations

Journal ArticleDOI
TL;DR: The relationship between fatigue strength and tensile properties has drawn widespread concern in recent decades as discussed by the authors, and it is gradually recognized that the fatigue strength is dependent on the strength of the weakest zone in materials, while the regular tensile test could only obtain the global strength.
Abstract: The relationship between fatigue strength and tensile properties has drawn widespread concern in recent decades. It is gradually recognized that the fatigue strength is dependent on the strength of the weakest zone in materials, while the regular tensile test could only obtain the global strength. The present study, for the first time, constructed a fast evaluation method, in which extremely slender specimens were employed. It is found that, when the specimen is slender enough, i.e., the soft oriented grain could occupy the whole section of the specimen, the strength of the soft domain could be related to the fatigue strength. In the 18Ni maraging steels, the fatigue crack would nucleate in the precipitate free zone (PFZ), which is the soft domain. Furthermore, the fatigue strength of fully reversed loading test nearly equals to the yield strength of the PFZ measured by the slender tensile test. This founding may shed light on the fast evaluation of fatigue strength, which could bring great economic benefits and save invaluable time.

8 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023101
2022177
2021119
202089
201993
201874