Publication detail

Effect of Various Spray Cooling Configurations on Hardness Profile of Tubes

STRÁNSKÝ, M. BROŽOVÁ, T. RAUDENSKÝ, M. HNÍZDIL, M. TUROŇ, R.

Original Title

Effect of Various Spray Cooling Configurations on Hardness Profile of Tubes

English Title

Effect of Various Spray Cooling Configurations on Hardness Profile of Tubes

Type

conference paper

Language

en

Original Abstract

Heat treatment is one of methods to improve material properties. Heat treated tubes are used in petrochemical industry when high strength, low cost and low weight are needed. Spray cooling could be used for heat treatment because very high cooling intensity is required. This paper deals with influence of spray cooling parameters on the material hardness. Special device was developed by Heat transfer and fluid flow laboratory for quenching of small samples. Four different materials were tested. The main object of these tests was to find the influence of cooling distance, material and two-side cooling on material hardness. Device Innovatest Nexus 4303 (Vickers) was used to measure hardness in various depths from the cooled surface. Results showed that the hardness was improved for all of four materials. The influence of the spray cooling distance was not so significant. Hardness of material also depends on the cooling intensity in the inner side of the tube. If the cooling intensity in the inner side of the tube is much lower than external, it has negligible effect on the final hardness. If the inner and external cooling intensity is the same it causes increase of the hardness.

English abstract

Heat treatment is one of methods to improve material properties. Heat treated tubes are used in petrochemical industry when high strength, low cost and low weight are needed. Spray cooling could be used for heat treatment because very high cooling intensity is required. This paper deals with influence of spray cooling parameters on the material hardness. Special device was developed by Heat transfer and fluid flow laboratory for quenching of small samples. Four different materials were tested. The main object of these tests was to find the influence of cooling distance, material and two-side cooling on material hardness. Device Innovatest Nexus 4303 (Vickers) was used to measure hardness in various depths from the cooled surface. Results showed that the hardness was improved for all of four materials. The influence of the spray cooling distance was not so significant. Hardness of material also depends on the cooling intensity in the inner side of the tube. If the cooling intensity in the inner side of the tube is much lower than external, it has negligible effect on the final hardness. If the inner and external cooling intensity is the same it causes increase of the hardness.

Keywords

Hardness, Vickers, quenching, heat treatment, spray cooling, tube

RIV year

2015

Released

11.05.2015

Publisher

Tanger Ltd Ostrava

Location

Ostrava

ISBN

978-80-87294-58-1

Book

METAL 2015 24th International Conference on Metallurgy and Materials

Edition

1

Issue number

1

Pages from

1

Pages to

6

Pages count

6

Documents

BibTex 


@inproceedings{BUT114846,
  author="Marek {Stránský} and Tereza {Kůdelová} and Miroslav {Raudenský} and Milan {Hnízdil}",
  title="Effect of Various Spray Cooling Configurations on Hardness Profile of Tubes",
  annote="Heat treatment is one of methods to improve material properties. Heat treated tubes are used in petrochemical industry when high strength, low cost and low weight are needed. Spray cooling could be used for heat treatment because very high cooling intensity is required. This paper deals with influence of spray cooling parameters on the material hardness. 
Special device was developed by Heat transfer and fluid flow laboratory for quenching of small samples. Four different materials were tested. The main object of these tests was to find the influence of cooling distance, material and two-side cooling on material hardness. Device Innovatest Nexus 4303 (Vickers) was used to measure hardness in various depths from the cooled surface. Results showed that the hardness was improved for all of four materials. The influence of the spray cooling distance was not so significant. Hardness of material also depends on the cooling intensity in the inner side of the tube. If the cooling intensity in the inner side of the tube is much lower than external, it has negligible effect on the final hardness. If the inner and external cooling intensity is the same it causes increase of the hardness.",
  address="Tanger Ltd Ostrava",
  booktitle="METAL 2015 24th International Conference on Metallurgy and Materials",
  chapter="114846",
  edition="1",
  howpublished="electronic, physical medium",
  institution="Tanger Ltd Ostrava",
  year="2015",
  month="may",
  pages="1--6",
  publisher="Tanger Ltd Ostrava",
  type="conference paper"
}