Modelling of dynamic and metadynamic recrystallisation during bar rolling of a medium carbon spring steel

2005 ◽  
Vol 160 (3) ◽  
pp. 267-277 ◽  
Author(s):  
J.H. Bianchi ◽  
L.P. Karjalainen
Keyword(s):  
Spring Steel ◽  
Bar Rolling ◽  
Medium Carbon

Optimized Thermomechanical Treatment for Strong and Ductile Martensitic Steels

2007 ◽  
Vol 539-543 ◽  
pp. 4526-4531 ◽  
Author(s):  
Araz Ardehali Barani ◽  
Dirk Ponge
Keyword(s):  
Heat Treatment ◽  
Thermomechanical Treatment ◽  
Spring Steel ◽  
Martensitic Steels ◽  
Medium Carbon ◽  
Heat Treated ◽  
Conventional Heat Treatment ◽  
The Matrix ◽  
Different Levels ◽  
Strength And Ductility

In this study the effect of thermomechanical treatment on the microstructure of austenite and martensite and the mechanical properties of a medium carbon silicon chromium spring steel with different levels of impurities is investigated. Results are presented for conventional heat treatment and for thermomechanical treatment (TMT). Compared to conventionally heat treated samples austenite deformation improves strength and ductility. Thermomechanically treated samples are not prone to embrittlement by phosphorous. TMT influences the shape and distribution of carbides within the matrix and at prior austenite grain boundaries. It is shown that utilization of TMT is beneficial for increasing the ultimate tensile strength to levels above 2200 MPa and at the same time maintaining the ductility obtained at strength levels of 1500 MPa by conventional heat treatment. The endurance limit is increased and embrittlement does not occur.

scholarly journals Development of Aus-drawing Process in Medium Carbon Spring Steel for Coil Springs

1999 ◽  
Vol 85 (5) ◽  
pp. 411-418 ◽  
Author(s):  
Michihiko AYADA ◽  
Kazuo INOUE ◽  
Nobuhiro TSUJI ◽  
Hiroshi UTSUNOMIYA ◽  
Yoshihiro SAITO
Keyword(s):  
Spring Steel ◽  
Drawing Process ◽  
Medium Carbon

scholarly journals Analysis of grain growth and morphology of bainite in medium-carbon spring steel

2019 ◽  
Vol 768 ◽  
pp. 138446 ◽  
Author(s):  
Aleksandra Królicka ◽  
Krzysztof Radwański ◽  
Andrzej Ambroziak ◽  
Andrzej Żak
Keyword(s):  
Grain Growth ◽  
Spring Steel ◽  
Medium Carbon

Microstructure and Mechanical Properties of Austempered Medium-Carbon Spring Steel

2018 ◽  
Vol 24 (4) ◽  
pp. 693-701 ◽  
Author(s):  
Seong Hoon Kim ◽  
Kwan-Ho Kim ◽  
Chul-Min Bae ◽  
Jae Sang Lee ◽  
Dong-Woo Suh
Keyword(s):  
Mechanical Properties ◽  
Spring Steel ◽  
Medium Carbon ◽  
Microstructure And Mechanical Properties

Austenite Grain Coarsening Behaviour in a Medium Carbon Si-Cr Spring Steel with and without Vanadium

2006 ◽  
Vol 77 (8) ◽  
pp. 590-594 ◽  
Author(s):  
Fei Li ◽  
Araz Ardehali Barani ◽  
Dirk Ponge ◽  
Dierk Raabe
Keyword(s):  
Spring Steel ◽  
Grain Coarsening ◽  
Medium Carbon ◽  
Austenite Grain

Observations on the structure at the transformation interface of pearlite in steel

1990 ◽  
Vol 48 (4) ◽  
pp. 200-201
Author(s):  
F. A. Khalid ◽  
D. V. Edmonds
Keyword(s):  
Room Temperature ◽  
Thin Foil ◽  
Carbon Steels ◽  
Model Alloy ◽  
Growth Interface ◽  
Medium Carbon ◽  
Solution Treated ◽  
Medium Carbon Steels ◽  
Alloy Carbide ◽  
Hot Rolled

The austenite/pearlite growth interface in a model alloy steel (Fe-1 lMn-0.8C nominal wt%) is being investigated. In this particular alloy pearlite nodules can be grown isothermally in austenite that remains stable at room temperature, thus facilitating examination of the transformation interfaces. This study presents preliminary results of thin foil TEM of the austenite/pearlite interface, as part of a programme of aimed at studying alloy carbide precipitation reactions at this interface which can result in significant strengthening of microalloyed low- and medium- carbon steels L Similar studies of interface structure, made on a partially decomposed high- Mn austenitic alloy, have been reported recently.The experimental alloys were made as 50 g argon arc melts using high purity materials and homogenised. Samples were hot- rolled, swaged and machined to 3mm diameter rod, solution treated at 1300 °C for 1 hr and WQ. Specimens were then solutionised between 1250 °C and 1000 °C and isothermally transformed between 610 °C and 550 °C for 10-18 hr and WQ.

Sign in / Sign up

Export Citation Format

Share Document