Influences of RE-Ti Composite Modification on the Structure and Properties of W6Mo5Cr4V2 Alloy

2008 ◽  
Vol 33-37 ◽  
pp. 455-458 ◽  
Author(s):  
Xi Lan Feng ◽  
Zhi Qiang Jiang ◽  
Zhong Yan Hu
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Rare Earth ◽  
Structure Refinement ◽  
Matrix Structure ◽  
Structure And Properties ◽  
Eutectic Carbides ◽  
High Temperature Wear ◽  
The Impact ◽  
Composite Modification

The structural change and properties of W6Mo5Cr4V2 alloy (M2 steel) inoculated by addition of rare earth (RE)-Ti were investigated. The results indicated that the impact toughness and fracture toughness were increased distinctly due to network eutectic carbides elimination, matrix structure refinement, and well-distribution of eutectic carbides. The hardness of modified M2 steel hardly changed. In addition, the high temperature wear resistance was improved.

Structure and Properties Enhancement in High-Speed Steels upon Primary Solidification of a Melt

2008 ◽  
Vol 144 ◽  
pp. 267-272
Author(s):  
Alexander S. Chaus
Keyword(s):  
Mechanical Properties ◽  
High Speed ◽  
Chemical Elements ◽  
Structural Parameters ◽  
Structure Refinement ◽  
Structure And Properties ◽  
Theoretical Evaluation ◽  
Surface Active ◽  
The Impact ◽  
Toughness Enhancement

In order to exhibit good all-round performance the impact toughness enhancement of cast high-speed steels (HSS) is obligatorily needed. In general, different methods are used commercially to achieve cast structure refinement and, as a consequence, their properties are improved. Introduction into the melt of inoculants particles or surface-active additions is among most beneficial. However, the effect of modifying additions in cast HSS has been studied insufficiently. For this reason the theoretical evaluation and experimental confirmation of the modifying and refining effects of 23 chemical elements in HSS have been carried out. The relationships between the structural parameters and mechanical properties in the M2 and T30 HSS have been established.

Influence of Rare Earth on the Properties of H13 Steel by the QPQ Salt-Bath Treatment

2010 ◽  
Vol 97-101 ◽  
pp. 1454-1458 ◽  
Author(s):  
Guang Yao Xiong ◽  
Ming Juan Zhao ◽  
Long Zhi Zhao ◽  
Zhang Jian
Keyword(s):  
Wear Resistance ◽  
Rare Earth ◽  
Sliding Wear ◽  
Salt Bath ◽  
Structure And Properties ◽  
Micro Hardness ◽  
H13 Steel ◽  
Hardness Tester ◽  
Different Content

The structure and properties of H13 steel treated by the QPQ Salt-bath treatment with different content of Rare Earth (RE) LaCO3 were studied. The surface of H13 steel was treated using this method. The microstructure and depth of the treated surface for the steel were analyzed using SEM. The sliding wear resistance was tested on the M-2000 tester and the micro-hardness was tested using 401MVA microscopy hardness tester. The results showed that the thickness and the wear resistance and the speed of nitriding was highly improved and the performance of nitriding layer and the nitriding structure was improved.

Effect of Rare Earth Oxide and Rare Earth-Alumina-Silica Glass on Mechanical Properties of Liquid Phase Sintered Alumina Ceramics

2005 ◽  
Vol 290 ◽  
pp. 246-249 ◽  
Author(s):  
Jaroslav Sedláček ◽  
Dušan Galusek ◽  
Pavol Šajgalík
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Rare Earth ◽  
Liquid Phase ◽  
Rare Earth Oxide ◽  
Aluminosilicate Glass ◽  
Alumina Ceramics ◽  
Beneficial Effects ◽  
Rare Earth Addition ◽  
The Impact

The microstructure evolution and mechanical properties of alumina doped with rare earth oxide and rare earth-aluminosilicate glass has been investigated in order to understand better the impact of rare earth addition on hardness and fracture toughness. The aims of the present work are to examine the possibly beneficial effects of selected rare earth oxide added to alumina by two different routes in enhancing mechanical properties. The specific systems considered in this work were as follows: liquid phase sintered alumina containing RE2O3 (RE = La, Y) and RE2O3 – Al2O3 – SiO2 glassy phase up to 5 wt. %. The Vickers hardness and fracture toughness have been compared with the undoped alumina.

Study on Properties and Mechanism of Si-Reinforced Zn-Al Alloys

2011 ◽  
Vol 328-330 ◽  
pp. 1487-1490 ◽  
Author(s):  
Xiu An Song
Keyword(s):  
Wear Resistance ◽  
Rare Earth ◽  
High Temperature ◽  
High Speed ◽  
Al Alloys ◽  
Hard Phase ◽  
Mixed Salt ◽  
High Temperature Wear ◽  
Rare Earth La ◽  
Tensile Toughness

Wear resistance of Zn-Al alloys declines sharply at high-speed overload, or poor lubrication, friction interface adhering. It is necessary to further improve the properties of Zn-Al alloys. Silicon were added into Zn-Al alloys as reinforcement (Si from 3%, 5% to 7%) and modified with mixed salt (sodiums, CaF2 and KCl ) and mixed rare earth(La and Ce oxides).Research determined the hardness, tensile toughness, wear quantities (at room and high temperature), observed the microstructure of alloys, analyzed the modification mechanism of modifier on silicon ,and selected a better sample for testing of high temperature wear resistance and high speed friction- rotating. The results show that silicon phases are significantly modified from sheet to spheroid, the properties are further improved because of silicon as hard phase in alloys, especially, the high temperature properties increases greatly, adhering temperature increases from below 170°C to above 250°C.

Comparative high-temperature wear resistance of CHS88U-VI alloy and H30N50YU5T2 satellite

2014 ◽  
Vol 0 (4) ◽  
Author(s):  
Oleksandr M. Kostin ◽  
Anastasiia Yu. Butenko ◽  
Volodymyr O. Martynenko
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
High Temperature Wear

AISI C1060

Alloy Digest ◽  
1969 ◽  
Vol 18 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Alloy Steel ◽  
Heat Treating ◽  
Spring Steel ◽  
High Carbon ◽  
Steel Mills

Abstract AISI C1060 is a high-carbon water or oil hardening tool and spring steel recommended for heavy machinery parts, shafts, springs and miscellaneous 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 heat treating, machining, and joining. Filing Code: CS-32. Producer or source: Carbon and alloy steel mills.

SWEBOR 400

Alloy Digest ◽  
2014 ◽  
Vol 63 (3) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Tensile Properties ◽  
High Strength Steel ◽  
High Strength ◽  
Bend Strength ◽  
Great Strength ◽  
Wear Resistant

Abstract Swebor 400 (hardness 400 HBW) is a high-strength steel with good wear resistant qualities. This alloy is used to endure conditions of extra-heavy wear and when great strength and good weldability is required. This datasheet provides information on composition, hardness, tensile properties, and bend strength as well as fracture toughness. It also includes information on wear resistance as well as forming, machining, and joining. Filing Code: CS-181. Producer or source: Swebor Stål Svenska AB.

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