scholarly journals The Big Chill

2000 ◽  
Vol 122 (11) ◽  
pp. 94-97 ◽  
Author(s):  
John DeGaspari
Keyword(s):  
Weight Loss ◽  
Wear Resistance ◽  
Machine Tools ◽  
Heat Treating ◽  
Martensitic Phase ◽  
Treated Steel ◽  
Steel Grades ◽  
Quenched Steel ◽  
Improve Wear Resistance ◽  
Wear Tests

This article reviews the improvement of wear resistance of steel that can amount to found money, particularly in industrial uses such as stamping dies and machine tools. Quenching converts most of the austenitic microstructure to the martensitic phase, which is finer and denser. Martensite, the chief component of quenched steel, consists of hardened carbides that provide the higher hardness and wear resistance. Cryogenics has attracted the interest of others who want to improve wear resistance in wider applications. As a follow-on treatment to conventional heat treating, cryogenics should be seen as the very last step in the process. After wear tests, in which cryogenically treated parts were run against an abrasion wheel, it was found that weight loss on several steel grades improved by factors of two to five. It was also found that the overall hardness of the treated steel did not change noticeably.

TATMO V

Alloy Digest ◽  
1985 ◽  
Vol 34 (1) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
High Speed ◽  
Heat Treating ◽  
Steel Company ◽  
Treated Steel ◽  
Heat Treated ◽  
Red Hardness ◽  
Edge Toughness ◽  
Heat Treated Steel

Abstract TATMO-V is a high-speed tool steel with superior abrasion resistance because of its high contents of carbon and vanadium. It is an excellent choice for premium grade tools which require an outstanding balance of red hardness, edge toughness, and wear resistance. Increased tool life of Tatmo-V is noted in the machining of semi-hard, heat-treated steel pats (300-350 Brinell). This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-434. Producer or source: Latrobe Steel Company.

ANALYSIS OF METHODS TO IMPROVE WEAR RESISTANCE OF BEDWAYS OF MACHINE TOOLS

2016 ◽  
pp. 40-50
Author(s):  
Anatoly Petrovich Minakov ◽  
Nadezhda Mikhailovna Yushkevich ◽  
Irina Dmitriyevna Kamchitskaya ◽  
Yelena Valeryevna Ilyushina ◽  
Denis Leonidovich Zaitsev
Keyword(s):  
Wear Resistance ◽  
Machine Tools ◽  
Improve Wear Resistance

Deep Cryogenic Treatment and CrN Coating Effects on Micro-Scale Abrasion of Aluminum Alloy AA 6101-T4

2014 ◽  
Vol 936 ◽  
pp. 1047-1055 ◽  
Author(s):  
Edgar S. Ashiuchi ◽  
Volker F. Steier ◽  
Cosme R.M. Silva ◽  
Tales D. Barbosa ◽  
Tiago F.O. Melo ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Aluminum Alloy ◽  
Aluminum Alloys ◽  
Wear Rate ◽  
Cryogenic Treatment ◽  
Deep Cryogenic Treatment ◽  
Low Wear ◽  
The Impact ◽  
Improve Wear Resistance ◽  
Wear Tests

The endurance of components made of aluminum and aluminum alloys is often limited by their low yield strength and by their low wear resistance. The aim of this paper is to investigate the effect of different methods that can improve wear resistance of aluminum alloys. As a first approach, a highly wear resistant chromium nitrite layer was deposited by plasma vapor deposition on the surface of the aluminum alloy AA 6101-T4. In the second method, an ultra-deep cryogenic treatment was selected. Both methods have been previously used to improve the wear resistance of other harder substrate materials, like tool steel. To investigate the impact of the two methods on the wear resistance of such alloy, micro abrasive wear tests were carried out and an analysis based on the Archard’s law was considered. The results showed a decrease of the wear rate by 29% and 26% for the coated and for the cryogenically treated specimens, respectively, when compared to the as received material. The work also investigated the performance of three different methods (Allsopp, Double Intercept and Polynomial AT) usually considered to calculate the wear rate of coated samples. The three methods presented similar measures of wear rate for the substrate and for the coating

scholarly journals Study for Improvement in the Surface Properties and Wear Behavior of Mild Steel

2021 ◽  
Vol 9 (10) ◽  
pp. 938-948
Author(s):  
Hamdan Gowhar Nahvi
Keyword(s):  
Weight Loss ◽  
Wear Resistance ◽  
Sliding Wear ◽  
Substrate Material ◽  
Temperature Oxidation ◽  
Iron Aluminum ◽  
Gtaw Process ◽  
Wear Tests ◽  
Coated Area ◽  
Surface Improvement

Abstract: Surface of a material can be improved by depositing the filler metal for the enhancement of various properties. Surface should be harder than substrate material for surface improvement. This surface improvement is also known as surfacing. In present research Mild steel specimens of size 140×35×40 were used to deposit surfacing layers and study the feasibility of iron/aluminum with varying compositions on low carbon steel deposited by GTAW process. Specimens for hardness and oxidation resistance were prepared. While studying oxidation of surfaced and un-coated area (base material), oxidation test resulted that the oxidation occurred on surface of base metal (un-coated area) after heating at different temperatures and time intervals. Specimens kept at 500˚C, 700˚C temperatures for 3, 6, 9 hours to get oxidized from un-coated surface but no mark of oxidation and pitting was visible at surfaced area but pitting of un-coated area occurred at 700˚C temperature. Oxidation had no effect to surfaced area. Low temperature oxidation test specimens gave only weight loss from un-coated portion but high temperature oxidation gave high amount of weight reduction due to pitting occurred on un-coated portion. The amount of weight loss of specimens increased with increase in furnace holding time at constant temperature. With increase in temperature oxidation of un-coated area of specimens also increased and pitting action occurred on un-coated area of specimens at high temperature. Further, for the various wear tests the cylindrical pins of 8 mm diameter with spherical tip 4 mm radius was made. Wear tests were carried out on pin on disc sliding wear testing machine. The comparison of wear rate loss was studied with constant sliding distance, varying load and sliding velocity of different compositions of iron/aluminum surfacing and substrate material. Hardness and wear resistance of composition were increased with increase in percentage of Fe element in composition. Composition C1 (Fe:Al/70:30) had high hardness and high wear resistance as compared to composition C2 (Fe:Al/30:70) and C3 (Fe:Al/50:50). Composition C3 (Fe:Al/50:50) had better hardness and wear resistance as compared composition C2 (Fe:Al/70:30). Keywords: Surface improvement, Fe-Al intermetallic, GTAW process, Sliding wear.

AISI 1070

Alloy Digest ◽  
1973 ◽  
Vol 22 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
Carbon Steel ◽  
Physical Properties ◽  
Machine Tools ◽  
Heat Treating ◽  
Spring Steel ◽  
High Carbon ◽  
Steel Mills

Abstract AISI 1070 is a high-carbon water or oil-hardening tool and spring steel of low hardenability. It is used for railroad and street railway rails, heavy machinery parts, shafts, springs and a wide variety of hand and machine tools requiring strength and wear resistance. 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, and joining. Filing Code: CS-51. Producer or source: Carbon steel mills.

AISI 1065

Alloy Digest ◽  
1976 ◽  
Vol 25 (10) ◽  
Keyword(s):  
Wear Resistance ◽  
Corrosion Resistance ◽  
Carbon Steel ◽  
Physical Properties ◽  
Tensile Properties ◽  
Machine Tools ◽  
Heat Treating ◽  
High Carbon ◽  
Hand Tools ◽  
Steel Mills

Abstract AISI 1065 is a high-carbon oil-hardening machinery and tool steel of low hardenability. It is used for springs, hand tools, machinery parts, shafts and many machine tools requiring strength and wear resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as heat treating, machining, and joining. Filing Code: CS-63. Producer or source: Carbon steel mills.

SAE 1070

Alloy Digest ◽  
1988 ◽  
Vol 37 (6) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
Carbon Steel ◽  
Physical Properties ◽  
Machine Tools ◽  
Heat Treating ◽  
Spring Steel ◽  
High Carbon ◽  
Steel Mills

Abstract SAE 1070 is a high-carbon water or oil-hardening tool and spring steel of low hardenability. It is used for railroad and street railway rails, heavy machinery parts, shafts, springs and a wide variety of hand and machine tools requiring strength and wear resistance. 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, and joining. Filing Code: CS-121. Producer or source: Carbon steel mills.

SAE 1064

Alloy Digest ◽  
1980 ◽  
Vol 29 (2) ◽  
Keyword(s):  
Wear Resistance ◽  
Corrosion Resistance ◽  
Carbon Steel ◽  
Physical Properties ◽  
Tensile Properties ◽  
Machine Tools ◽  
Heat Treating ◽  
Steel Mills ◽  
Wide Range ◽  
High Level

Abstract SAE 1064 is a carbon steel with carbon at a high level (nominally 0.64% carbon). It has low hardenability and on austenitizing and liquid quenching it develops a hard surface with a soft, ductile core. It is used for a variety of railway equipment, heavy machinery parts, springs, shafts and a wide range of hand and machine tools that require strength and wear resistance with a ductile core. 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, and joining. Filing Code: CS-79. Producer or source: Carbon steel mills.

Influences of Complex Modification of RE and P on the Wear Resistance of Hypereutectic Al-24Si Alloy

2011 ◽  
Vol 284-286 ◽  
pp. 1647-1650
Author(s):  
Niu Can Liu ◽  
Jun Qing Li ◽  
Hai Dong Li
Keyword(s):  
Weight Loss ◽  
Wear Resistance ◽  
Wear Mechanism ◽  
Eutectic Silicon ◽  
Primary Silicon ◽  
Primary Crystal ◽  
Crystal Silicon ◽  
Unmodified Alloy ◽  
Improve Wear Resistance ◽  
Silicon Particles

The influences of RE and P complex modifications on microstructures and wear-resistance of hypereutectic Al-24Si alloy were studied. The results show that the complex modifications of P and RE make the coarse block primary crystal silicon refined and their edges and angles are passivated, the large needle-like network eutectic silicon be modified to the fine lamella or particle ones. The optimum modification effect occurs with 0.10%P and 0.9%RE. The complex modification of P and RE can also obviously improve wear resistance of hypereutectic Al-24Si alloy. When the tested alloys modified with 0.10%P and 0.9%RE, the optimal wear resistance of modified alloys is obtained. The weight loss is decreased to 3.9mg from 5.4mg of the unmodified alloy, decreased by 27.8%. The abrasive wear caused by the breaking of Si phase is dominant wear mechanism of the alloy. It can be attributed to the refinement of primary silicon and eutectic silicon particles and the increase of strength and ductibility of alloys caused by the complex modification of P and RE.

SAE 1065

Alloy Digest ◽  
1988 ◽  
Vol 37 (1) ◽  
Keyword(s):  
Wear Resistance ◽  
Corrosion Resistance ◽  
Carbon Steel ◽  
Physical Properties ◽  
Tensile Properties ◽  
Machine Tools ◽  
Heat Treating ◽  
High Carbon ◽  
Hand Tools ◽  
Steel Mills

Abstract SAE 1065 is a high-carbon oil-hardening machinery and tool steel of low hardenability. It is used for springs, hand tools, machinery parts, shafts and many machine tools requiring strength and wear resistance. 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, and joining. Filing Code: CS-118. Producer or source: Carbon steel mills.

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