Effects of deep cryo treatment of high speed steel on the turning process of a medium carbon steel

Wear performance of some tool steels such as cold working steel (AISI D2) and high speed steel (AISI M2) in high speed cropping are investigated for four groups of work materials, viz., (i) low carbon steel (AISI 1023), (ii) medium carbon steel (AISI 1039), (iii) ball bearing steel (AISI 52100), and (iv) austenitic stainless steel. The tool wear profiles and wear volumes are monitored through a digital technique at long intervals and the resulting deterioration of the billet quality was noted. The results confirm the trend found in other fabrication processes that the wear is much lower for the materials in Groups a and b as compared to the other two groups containing high alloying elements. The wear mechanisms, as observed through SEM images, are found to be quite different for these cases. Another observation relates to the fact that within the range investigated, the billet quality remains unaffected with the exception of the blade face angularity. Thus, the blades have surprisingly high tool life.

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INFLUENCE THE QUENCHING AND TEMPERING ON THE MICROSTRUCTURE, MECHANICAL PROPERTIES AND SURFACE ROUGHNESS, OF MEDIUM CARBON STEEL

THE IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING ◽

10.32852/iqjfmme.vol18.iss1.78 ◽

2018 ◽

Vol 18 (1) ◽

pp. 125-135

Author(s):

Sattar H A Alfatlawi

Keyword(s):

Mechanical Properties ◽

Heat Treatment ◽

Surface Roughness ◽

Carbon Steel ◽

Cold Water ◽

Medium Carbon Steel ◽

Medium Carbon ◽

Heating And Cooling ◽

Treatment Processes ◽

Quenching And Tempering

One of ways to improve properties of materials without changing the product shape toobtain the desired engineering applications is heating and cooling under effect of controlledsequence of heat treatment. The main aim of this study was to investigate the effect ofheating and cooling on the surface roughness, microstructure and some selected propertiessuch as the hardness and impact strength of Medium Carbon Steel which treated at differenttypes of heat treatment processes. Heat treatment achieved in this work was respectively,heating, quenching and tempering. The specimens were heated to 850°C and left for 45minutes inside the furnace as a holding time at that temperature, then quenching process wasperformed in four types of quenching media (still air, cold water (2°C), oil and polymersolution), respectively. Thereafter, the samples were tempered at 200°C, 400°C, and 600°Cwith one hour as a soaking time for each temperature, then were all cooled by still air. Whenthe heat treatment process was completed, the surface roughness, hardness, impact strengthand microstructure tests were performed. The results showed a change and clearimprovement of surface roughness, mechanical properties and microstructure afterquenching was achieved, as well as the change that took place due to the increasingtoughness and ductility by reducing of brittleness of samples.

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AISI 1025

Alloy Digest ◽

10.31399/asm.ad.cs0047 ◽

1972 ◽

Vol 21 (3) ◽

Keyword(s):

Fracture Toughness ◽

Corrosion Resistance ◽

Carbon Steel ◽

Physical Properties ◽

Heat Treating ◽

General Purpose ◽

Medium Carbon Steel ◽

Medium Carbon ◽

Steel Mills ◽

Cold Worked

Abstract AISI 1025 is a low-to-medium-carbon steel used in the hot-worked, cold-worked, normalized or water-quenched-and-tempered condition for general-purpose construction and engineering. It is also used for case-hardened components. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: CS-47. Producer or source: Carbon and alloy steel mills.

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AISI 1551

Alloy Digest ◽

10.31399/asm.ad.cs0080 ◽

1980 ◽

Vol 29 (2) ◽

Keyword(s):

Carbon Steel ◽

Heat Treating ◽

Medium Carbon Steel ◽

High Manganese ◽

Hand Tools ◽

Medium Carbon ◽

Steel Mills ◽

Cold Worked ◽

Hot Rolled ◽

Good Workability

Abstract AISI 1551 is a medium-carbon steel containing relatively high manganese (0.85-1.15%) for a carbon steel. It can be used in the hot-rolled, annealed, normalized, cold-worked or liquid-quenched-and-tempered condition for numerous applications. It has a combination of good machinability and good workability. Its many uses include hand tools, machinery parts, springs and agricultural machinery. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: CS-80. Producer or source: Carbon steel mills.

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SAE 1037

Alloy Digest ◽

10.31399/asm.ad.cs0076 ◽

1979 ◽

Vol 28 (4) ◽

Keyword(s):

Fracture Toughness ◽

Carbon Steel ◽

Low Cost ◽

Heat Treating ◽

General Purpose ◽

Medium Carbon Steel ◽

Medium Carbon ◽

Steel Mills ◽

Medium Strength ◽

Hot Rolled

Abstract SAE 1037 is a carbon steel that provides medium strength and medium toughness at low cost. It is used in the hot-rolled, normalized, oil-quenched-and-tempered and water-quenched-and-tempered conditions. This medium-carbon steel is used for construction and for general-purpose engineering. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: CS-76. Producer or source: Carbon steel mills.

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