Micro-Alloyed Steel for Forgings

2018 ◽  
Vol 941 ◽  
pp. 1603-1606
Author(s):  
Sabrina Mengaroni ◽  
Massimo Calderini ◽  
Giuseppe Napoli ◽  
Chiara Zitelli ◽  
Andrea di Schino
Keyword(s):  
Heat Treatment ◽  
Tensile Properties ◽  
Alloyed Steel ◽  
Precipitation Strengthening ◽  
Micro Alloyed Steel ◽  
Industrial Demand

To fulfill the industrial demand of forged steels with high tensile properties and microstructural requirements coupled with reduced cost, the possibility to increase the properties of C-Mn steels by means of precipitation strengthening as achieved by micro-alloying (and without the addition of expensive elements such as Mo and Cr) has been evaluated. In order to do that, the effect of V addition has been exploited by means of metallurgical modelling followed by a laboratory ingot manufacturing. Heat treatment has been designed aimed to achieve the desired target tensile properties. Results show that ASTM A694 F70 grade requirements can bel fulfilled by 0.15% V addition and a proper heat treatment in a ferrite-pearlite microstructure, representative of a forged component. Results are discussed in comparison to those of a similar steel without V addition.

Effect of Heat Treatment in Pipe Processing Stage on Corrosion Resistance of Micro-Alloyed Steel Hot-Rolled Products

Metallurgist ◽  
2020 ◽  
Vol 64 (3-4) ◽  
pp. 322-333
Author(s):  
I. G. Rodionova ◽  
A. V. Amezhnov ◽  
D. V. Kudashov ◽  
V. V. Naumenko ◽  
D. L. D’yakonov ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Alloyed Steel ◽  
Processing Stage ◽  
Micro Alloyed Steel ◽  
Pipe Processing ◽  
Hot Rolled

Behavior of Micro-Alloyed Steel at Thermal Treatment

2017 ◽  
Vol 265 ◽  
pp. 177-180 ◽  
Author(s):  
T.V. Shveyova ◽  
A.M. Pesin ◽  
D.O. Pustovoytov
Keyword(s):  
Heat Treatment ◽  
Thermal Treatment ◽  
Microalloyed Steel ◽  
Alloyed Steel ◽  
Heavy Duty ◽  
Heavy Duty Vehicle ◽  
Micro Alloyed Steel ◽  
The Stability

A tendency towards the growth of grain when heating is investigated and the stability against tempering alloyed and microalloyed steel. The advantage steel, microalloyed by vanadium and nitrogen is shown and their application for heavy-duty vehicle parts is recommended. The possibility of residual forging heat of forgings realization for their heat treatment is established.

scholarly journals Effects of Fine Precipitates on Austenite Grain Refinement of Micro-alloyed Steel during Cyclic Heat Treatment

2019 ◽  
Vol 59 (11) ◽  
pp. 2098-2104 ◽  
Author(s):  
Genki Saito ◽  
Norihito Sakaguchi ◽  
Munekazu Ohno ◽  
Kiyotaka Matsuura ◽  
Masayoshi Takeuchi ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Grain Refinement ◽  
Alloyed Steel ◽  
Cyclic Heat Treatment ◽  
Austenite Grain ◽  
Cyclic Heat ◽  
Micro Alloyed Steel

Effect of Different Normalizing Processes on Microstructure, Precipitation Behavior and Mechanical Properties of V-Ti-Micro-Alloyed Steel Alloys

2020 ◽  
Vol 835 ◽  
pp. 243-250
Author(s):  
Ahmed Hamed ◽  
Mamdouh Eissa ◽  
Abdelhakim Kandil ◽  
Omnia Ali ◽  
Taha Mattar
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
High Strength ◽  
Optimum Combination ◽  
Alloyed Steel ◽  
Steel Alloy ◽  
Precipitation Behavior ◽  
Steel Alloys ◽  
Micro Alloyed Steel ◽  
Holding Temperature

Normalizing is an effective heat treatment in improving the microstructure and developing the mechanical properties of micro-alloyed steel. The normalizing parameters such as temperature and holding time are the main keys to microstructure and mechanical properties controlling. Therefore, obtaining an optimum combination of mechanical properties must be subjected to an ideal combination of these parameters. Furthermore, adjusting the optimum normalizing parameters must be considered for every chemical composition depending on the critical transformation temperatures. In this work, four micro-alloyed steel alloys containing V (0.008-0.1wt %) and Ti (0.002-0.072) were held on different normalizing temperatures for 30 minutes. The first holding temperature was carried out just above the Ac3 temperature and the second was carried out above the Ac3 by 100°C (Ac3+100°C). With the controlled normalizing condition, V-Ti-micro-alloyed steel alloy has produced an ultra-fine structure of grain size 2.2 microns and combined high strength of 725 MPa YS, 1058 MPa UTS and good ductility of 20%.

Modification of MnS inclusion by tellurium in 38MnVS6 micro-alloyed steel

2020 ◽  
Vol 117 (6) ◽  
pp. 615
Author(s):  
Ping Shen ◽  
Lei Zhou ◽  
Qiankun Yang ◽  
Zhiqi Zeng ◽  
Kenan Ai ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Aspect Ratio ◽  
Strong Influence ◽  
Experimental Results ◽  
Alloyed Steel ◽  
Equivalent Diameter ◽  
Small Aspect Ratio ◽  
Steel Quality ◽  
Eds Analysis ◽  
Micro Alloyed Steel

In 38MnVS6 steel, the morphology of sulfide inclusion has a strong influence on the fatigue life and machinability of the steel. In most cases, the MnS inclusions show strip morphology after rolling, which significantly affects the steel quality. Usually, the MnS inclusion with a spherical morphology is the best morphology for the steel quality. In the present work, tellurium was applied to 38MnVS6 micro-alloyed steel to control the MnS inclusion. Trace tellurium was added into 38MnVS6 steel and the effect of Te on the morphology, composition, size and distribution of MnS inclusions were investigated. Experimental results show that with the increase of Te content, the equivalent diameter and the aspect ratio of inclusion decrease strikingly, and the number of inclusions with small aspect ratio increases. The inclusions are dissociated and spherized. The SEM-EDS analysis indicates that the trace Te mainly dissolves in MnS inclusion. Once the MnS is saturated with Te, MnTe starts to generate and wraps MnS. The critical Te/S value for the formation of MnTe in the 38MnV6 steel is determined to be approximately 0.075. With the increase of Te/S ratio, the aspect ratio of MnS inclusion decreases and gradually reaches a constant level. The Te/S value in the 38MnVS6 steel corresponding to the change of aspect ratio from decreasing to constant ranges from 0.096 to 0.255. This is most likely to be caused by the saturation of Te in the MnS inclusion. After adding Te in the steel, rod-like MnS inclusion is modified to small inclusion and the smaller the MnS inclusion, the lower the aspect ratio.

CONDULOY

Alloy Digest ◽  
1953 ◽  
Vol 2 (10) ◽  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Physical Properties ◽  
Tensile Properties ◽  
Copper Alloy ◽  
Heat Treating ◽  
Age Hardening ◽  
Beryllium Copper ◽  
Hardening Heat Treatment

Abstract CONDULOY is a low beryllium-copper alloy containing about 1.5% nickel. It responds to age-hardening heat treatment for improved mechanical properties. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on casting, heat treating, machining, and joining. Filing Code: Cu-11. Producer or source: Brush Beryllium Company.

UNS A02960

Alloy Digest ◽  
1987 ◽  
Vol 36 (12) ◽  
Keyword(s):  
Heat Treatment ◽  
Tensile Properties ◽  
Heat Treating ◽  
Age Hardening ◽  
Casting Alloy ◽  
Passenger Cars ◽  
Temperature Performance ◽  
Mold Casting ◽  
Railway Passenger ◽  
Hardening Heat Treatment

Abstract UNS No. A02060 is an aluminum-mold casting alloy that responds to an age-hardening heat treatment. It is recommended for applications that require a combination of high tensile properties and good machinability. Among its many uses are fuel pump bodies, aircraft fittings and seat frames for railway passenger cars. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on high temperature performance as well as casting, heat treating, machining, and joining. Filing Code: Al-285. Producer or source: Various aluminum companies.

ALUMINUM 296.0

Alloy Digest ◽  
1982 ◽  
Vol 31 (11) ◽  
Keyword(s):  
Heat Treatment ◽  
Shear Strength ◽  
Tensile Properties ◽  
Heat Treating ◽  
Age Hardening ◽  
Casting Alloy ◽  
Permanent Mold ◽  
Temperature Performance ◽  
Mold Casting ◽  
Hardening Heat Treatment

Abstract ALUMINUM 296.0 is an aluminum permanent-mold casting alloy that responds to an age-hardening heat treatment. It is recommended for applications that require a combination of high tensile properties and good machinability. Among its many uses are fuel pump bodies, aircraft fittings and seat frames for railway passengers cars. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on high temperature performance as well as casting, heat treating, machining, and joining. Filing Code: Al-241. Producer or source: Various aluminum companies. See also Alloy Digest Al-261, October 1985.

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