scholarly journals HEAT TREATMENT OF WEAR RESISTANT STEELS FOR DRILLING RIG PUMPS

2015 ◽  
pp. 116-120
Author(s):  
S. M. Nikiforova ◽  
M. A. Filippov ◽  
G. N. Plotnikov ◽  
A. S. Zhilin ◽  
S. V. Belikov
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
High Temperature ◽  
Residual Austenite ◽  
High Ability ◽  
Temperature Quenching ◽  
Wear Resistant ◽  
Drilling Rig ◽  
Working Surface ◽  
Frictional Hardening

The influence of heat treatment different options on wear resistance of steels of trademarks Kh12MFL and 150KhNML applied in manufacturing of mud pumps is reviewed. It is shown that the steel Kh12MFL is superior in wear resistance than the steel 150KhNML at abrasion. The martensite-carbide structure of both steels obtained at quenching at normal temperatures, from 900 to 1000 0С, ensures a good hardness (61-64 HRC). The analysis of the residual austenite contents influence on wear resistance was also made. It was determined that residual austenite formed after high temperature quenching (110-1170 0С) was metastable and had a tendency to transform into carbon containing martensite of deformation in the process abrasive wearing. This allowed steels to have a maximum wear resistance because of ensuring a high ability to frictional hardening of the working surface.

Heat Treatment of Wear Resistant Steels for Mud Pumps

2016 ◽  
Vol 870 ◽  
pp. 181-184 ◽  
Author(s):  
S.M. Nikiforova ◽  
M.A. Filippov ◽  
A.S. Zhilin
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
High Temperature ◽  
High Temperatures ◽  
Residual Austenite ◽  
Work Place ◽  
Temperature Quenching ◽  
Wear Resistant ◽  
Friction Hardening

Influence of different type heat treatment including high temperature quenching on wear resistance has been investigated. The two investigated steels are widely used in production of mud pumps. It was shown that Kh12MFL had better wear resistance in comparison with 150KhNML. Martensitic-carbide structure of the steels formed by quenching from high temperatures (900 – 1000 °С) induced good hardness (61 – 64 HRC). Analysis of the residual austenite contents influence on wear resistance was also made. It was determined that residual austenite formed after high temperature quenching (900 – 1000 °С) was metastable and had tendency to transform into carbon containing martensite of deformation. This allowed steels to have maximum wear resistance because of providing high abilities to friction hardening of the work place of the sample.

CREUSABRO 4800

Alloy Digest ◽  
2008 ◽  
Vol 57 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
High Temperature ◽  
Tensile Properties ◽  
Work Hardening ◽  
High Performance ◽  
Resistant Steel ◽  
Wear Resistant ◽  
Temperature Performance ◽  
Efficient Work

Abstract Creusabro 4800 is a high-performance wear-resistant steel exhibiting better resistance than other quenched steels with a hardness of 400 HB. This 4800 alloy uses a combination of fine distribution of microcarbides and an efficient work hardening in service to achieve wear resistance. This datasheet provides information on composition, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and wear resistance as well as forming, machining, and joining. Filing Code: SA-579. Producer or source: Industeel USA, LLC.

TLS D2

Alloy Digest ◽  
2008 ◽  
Vol 57 (2) ◽  
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Physical Properties ◽  
Tool Life ◽  
Tool Steel ◽  
Heat Treating ◽  
Size Change ◽  
Wear Resistant

Abstract TLS D2 is the most wear resistant of the commonly available grades of tool steel. It is deep hardening and has very low size change during heat treatment. However, because of its excellent wear resistance, it produces a low machinability rating. It is chosen when long tool life is required. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on wear resistance as well as heat treating and machining. Filing Code: TS-660. Producer or source: Timken Latrobe Steel.

The Effects of Feedstock Powder and Deposition Technique on the Hardness and Tribological Performance of Thermal-Sprayed WC-Co Coatings

2015 ◽  
pp. 1-24
Author(s):  
Traugott E. Fischer ◽  
Yunfei Qiao ◽  
YouRong Liu
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
High Velocity ◽  
Abrasion Resistance ◽  
Steel Substrate ◽  
Tribological Performance ◽  
Deposition Technique ◽  
Wear Resistant ◽  
Wear Resistant Coatings ◽  
The Difference

The wear resistance of thirty WC-Co coatings, deposited by standard High-Velocity Oxyfuel (HVOF) techniques and a high-temperature variant of HVOF, with standard commercial and experimental nanostructured feedstocks, is examined. It is found that the high-temperature gun produces harder and more wear-resistant coatings than the standard gun. The latter does not generate high enough temperatures to melt the powder and provide good bonding between WC grains and Co binder. All coatings present higher wear resistance than the steel substrate. Coatings deposited with standard feedstock possess generally higher wear resistance than nanostructured coatings. The difference is more pronounced in sliding than in abrasive wear. WC-Co Coatings deposited with nanostructured feedstocks are recommended for use in bearings and other machinery with sliding parts because they inflict much less wear on the material on which they slide than conventional coatings. Coatings with micrometer WC grains are recommended for abrasion resistance applications such as earth moving or slurry processing machinery.

High temperature and wear resistant materials with enhanced performance propertie

2020 ◽  
pp. 30-34
Author(s):  
B. N. Satbaev ◽  
A. Kh. Nurumgaliev ◽  
Yu. I. Shishkin ◽  
E. O. Aimbetova ◽  
N. T. Shalabaev ◽  
...  
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Mechanical Strength ◽  
Chemical Resistance ◽  
New Technology ◽  
High Chemical ◽  
Wear Resistant ◽  
High Chemical Resistance

The results of studies of obtaining self-sintering refractory masses are presented. A new technology for their manufacture is proposed. The basis of the resulting masses are baritecontaining components (barite or viterite concentrates). High chemical resistance, refractoriness, mechanical strength, hardness and wear resistance determine the scope of their application ― the manufacture of refractory products, linings, putties and concrete.

A Study on the Microstructure and Hardness Feature of 6CrW2MoVSi Steel after Heat Treatment

2014 ◽  
Vol 887-888 ◽  
pp. 223-227
Author(s):  
Yu Mei Dai ◽  
Yong Qing Ma ◽  
Yan Bin Wu ◽  
Ya Nan Ji
Keyword(s):  
Heat Treatment ◽  
High Temperature ◽  
Precipitation Hardening ◽  
Middle Section ◽  
Temperature Quenching ◽  
Quenching Temperature ◽  
Tempering Temperature ◽  
Higher Temperature ◽  
Average Size

6CrW2MoVSi steel has a refined and even microstructure after heat treatment, the average size of annealing carbide is 0.6 μm; quenching martensite is mainly lath-shaped martensite and only a small amount of acicular martensite, and the size of quenching acicular at 950 °C is smaller than 2.5 μm. The curve of quenching hardness increasing with quenching temperature rising is divided into three sections. In the middle section of quenching between 910 °C ~ 980 °C, quenching hardness presents slow rising trend. After higher temperature quenching, there are low and high temperature tempering precipitation hardening zones. At 220 °C ~ 240 °C tempering temperature, precipitation hardness is HRC54 ~ 58. At 540 °C ~ 570 °C tempering temperature, precipitation hardness is HRC52 ~ 56.

An Experimental Platform for Controlled Solidification and Heat Treatment and its Application in TiAl Alloys

2018 ◽  
Vol 913 ◽  
pp. 96-101
Author(s):  
Guang Yang ◽  
Hong Chao Kou ◽  
Jin Shan Li ◽  
Heng Zhi Fu
Keyword(s):  
Heat Treatment ◽  
High Temperature ◽  
Isothermal Holding ◽  
Solidification Process ◽  
High Accuracy ◽  
Temperature Quenching ◽  
Tial Alloys ◽  
Experimental Platform ◽  
Heating And Cooling ◽  
Cooling Speed

An experimental platform for controlled solidification and heat treatment and its applications in TiAl alloys are reported. The controlled solidification facility can be used to study the microstructure evolution of metals and alloys during solidification process and the controlled heat treatment device can realize the complex heat treatments and high temperature quenching conveniently. Compared with the traditional experimental equipments, this platform has three advantages. First, it can precisely control heating and cooling speed as well as isothermal holding time during solidification and heat treatment. Second, the high temperature microstructure can be obtained by quenching with high accuracy. Third, these two devices are cheaper and suitable to use in laboratory.

scholarly journals Composite Metal-Matrix Alloys Based on Ni-Al for Obtaining Wear-Resistant Coatings by Electric Spark Deposition

2021 ◽  
Vol 346 ◽  
pp. 02004
Author(s):  
S.N. Khimukhin ◽  
S.V. Nikolenko ◽  
L.A. Konevtsov ◽  
E.D. Kim
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Liquid Phase ◽  
Metal Matrix ◽  
Temperature Synthesis ◽  
Complex Composition ◽  
Wear Resistant ◽  
Research Results ◽  
Wear Resistant Coatings ◽  
High Temperature Synthesis

The paper presents the research results on produsing by the method of liquid-phase self-propagating high-temperature synthesis (SHS) the composite metal-matrix alloys intended for the obtaining of wear-resistant coatings by electric spark deposition (ESD). Oxides NiO, Cr2O3 and mineral concentrate ZrO2 were used as a melting charge. Alloys based on the Ni-Al system with aluminides of complex composition containing Cr and Zr were obtained by means of the alumothermic SHS reaction. Wear-resistant coatings were formed on steel 45 by the ESD method by means of the newly obtained alloys,. The maximum wear resistance of the coatings was obtained using the alloys containing Cr (wt% 18) and Zr (wt% 1.9).

The Wear Resistance of Mottled Iron with Stabilized Carbide Phase

2017 ◽  
Vol 265 ◽  
pp. 22-26
Author(s):  
S.V. Davydov ◽  
A.O. Gorlenko
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Phase Composition ◽  
Structural Component ◽  
Carbide Phase ◽  
Outer Shell ◽  
Wear Resistant ◽  
Phase Dissolution ◽  
Compositional Structures ◽  
Copper Chromium

There is investigated the wear resistance of mottled irons with stabilized carbide phase, obtained by alloying iron with copper, chromium and sulfur. It is shown that during heat treatment the outer shell of the carbide phase inclusions, destabilized with copper, dissolves, leaving a core stabilized with chromium. Carbon from the carbide phase dissolution coats the surface of manganese sulphide inclusions, forming additional wear-resistant structural component of mottled iron. The resulting structures can be attributed to compositional structures, which morphology and phase composition can be controlled by alloying and heat treatment.

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