Isothermal decomposition of supercooled austenite in chromium-nickel steel-copper pseudoalloys

Smyshlyaeva, T. V.; Шацов, А. А.

doi:10.1007/bf02471349

Met Sci Heat Treat

2000

DOI: 10.1007/bf02471349

|View full text |Cite

Isothermal decomposition of supercooled austenite in chromium-nickel steel-copper pseudoalloys

T. V. Smyshlyaeva¹,

А. А. Шацов²

Abstract: The industries of developed countries widely use alloy steel copper pseudoalloys. In copper-infiltrated steels the strength, ductility, and wear resistance increase due to the creation of a structure with a greater proportion ofmetastablc austenite. Such a structure can be obtained by a substantiated choice of the composition, concentration inhomogeneity, and appropriate heat-treatment regime of the material. The present paper is devoted to the decomposition of supercooled attstenite in chromium-nickel steel c… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2022

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Influence of heat treatment on the structure and properties of pseudo-alloy steel – copper alloy obtained by infiltration

Dyachkova

2022

Vescì Akademìì navuk Belarusì. Seryâ fizika-tehničnyh navuk

View full text Add to dashboard Cite

The paper presents the results of studies of the effect of heat treatment regimes on changes in the structure and properties of steel-copper alloy pseudo-alloys obtained by infiltration. It is shown that, depending on the composition and initial density of the steel skeleton, the strength of the material increases by 1.3–1.8 times, the hardening effect is realized when the carbon content in the steel skeleton is 0.3–1.5 % and is achieved due to changes in the structure and phase composition of the steel base and copper phase. It has been established that during heating for quenching and during tempering, redistribution of carbon occurs in the iron phase, which is more pronounced in the frame of the pseudo-alloy made of medium-carbon steel. The formation of a “crust” structure in the grains of the skeleton is noted, while in the skeleton made of medium-carbon steel this occurs at a tempering temperature of 200 °C, in low-carbon steel – at a temperature of 500–650 °C. In a high-carbon steel skeleton, carbon stratification in the grain body is less pronounced. An increase in the strength of pseudo-alloys at tempering temperatures of 500–650 °C is associated with the formation of the α′-phase, the precipitation of the Fe3C carbide phase and the metastable Fe2C phase in the iron phase, as well as the precipitation of dispersed phases Fe4Cu3, Fe4Cu3, η-Cu6Sn5 and δ-Cu3Sn8 in the copper phase. Due to the precipitation of phases, the microhardness of the infiltrate in the form of copper in pseudo-alloys after tempering at 550 °C increased from 820–880 to 950–980 MPa, in the form of tin bronze – from 1450 to 1750 MPa. The use of heat treatment leads to an increase not only in the strength, but also in the tribotechnical properties of the pseudo-alloy: the friction coefficient of the pseudo-alloy with a frame of 80 % density made of FeC0.8 steel decreases to 0.008–0.009, the seizure pressure doubles and the wear resistance increases by more than 2.5 times.

show abstract

Influence of heat treatment on the structure and properties of pseudo-alloy steel – copper alloy obtained by infiltration

Dyachkova

2022

Vescì Akademìì navuk Belarusì. Seryâ fizika-tehničnyh navuk

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Isothermal decomposition of supercooled austenite in chromium-nickel steel-copper pseudoalloys

Cited by 1 publication

References 8 publications

Influence of heat treatment on the structure and properties of pseudo-alloy steel – copper alloy obtained by infiltration

Influence of heat treatment on the structure and properties of pseudo-alloy steel – copper alloy obtained by infiltration

Contact Info

Product

Resources

About