High-Temperature Transformation of Carbides in Skeleton Eutectic and Delta-Eutectoid of Cast High-Speed Steel

2020 ◽  
Vol 62 (7-8) ◽  
pp. 489-497
Author(s):  
A. S. Chaus ◽  
M. Braèík ◽  
M. Sahul ◽  
V. Tittel
Keyword(s):  
High Temperature ◽  
High Speed ◽  
High Speed Steel ◽  
Temperature Transformation

CRUCIBLE CPM REX 121

Alloy Digest ◽  
2001 ◽  
Vol 50 (10) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
High Temperature ◽  
High Speed ◽  
High Speed Steel ◽  
Heat Treating ◽  
Maximum Hardness ◽  
Temperature Performance ◽  
Red Hardness ◽  
Cutting Speeds

Abstract CPM Rex 121 is a super high-speed steel with significantly higher wear resistance and red hardness than other high-speed steels. It is best suited for applications requiring high cutting speeds. It may provide an alternative to carbide where carbide cutting edges are too fragile. The annealed hardness is approximately 350-400 HB, and maximum hardness is approximately 72 HRC. This datasheet provides information on composition, physical properties, microstructure, hardness, and elasticity as well as fracture toughness. It also includes information on high temperature performance and wear resistance as well as heat treating and surface treatment. Filing Code: TS-591. Producer or source: Crucible.

Microstructures and high temperature properties of spray formed niobium-containing M3 high speed steel

2014 ◽  
Vol 45 (8) ◽  
pp. 689-698 ◽  
Author(s):  
H. B. Wang ◽  
L. G. Hou ◽  
J. X. Zhang ◽  
L. Lu ◽  
H. Cui ◽  
...  
Keyword(s):  
High Temperature ◽  
High Speed ◽  
High Speed Steel ◽  
High Temperature Properties

Investigation on Wear Behavior at High Temperature of Smooth and Bionic Non-Smooth Samples

2012 ◽  
Vol 157-158 ◽  
pp. 1628-1631
Author(s):  
Xiao Dong Yang ◽  
Zhuo Juan Yang ◽  
You Quan Chen
Keyword(s):  
High Temperature ◽  
Wear Mechanism ◽  
High Speed ◽  
Room Temperature ◽  
Wear Behavior ◽  
High Speed Steel ◽  
Wear Test ◽  
Test Method ◽  
Wear Characteristics ◽  
Pin On Disk

By using pin-on-disk wear test method, the wear behavior of W9Gr4V high speed steel with smooth and non-smooth concave samples which treated by laser texturing technology was investigated between room temperature and 500 . It was found that the anti-wear ability of the non-smooth concave samples was increased more than that of the smooth ones and the anti-wear ability of the non-smooth samples was evident than the smooth ones at temperature increasing. In this paper, the anti-wear mechanism of non-smooth concave samples and wear characteristics with smooth and non-smooth samples in high-temperature were analyzed.

scholarly journals High-temperature Fatigue Property of a W–Mo Type High-speed Steel

2009 ◽  
Vol 95 (9) ◽  
pp. 655-659
Author(s):  
Tadashi Terazawa ◽  
Tomoyuki Hasegawa ◽  
Takashi Mitani ◽  
Chihiro Watanabe ◽  
Ryoichi Monzen
Keyword(s):  
High Temperature ◽  
High Speed ◽  
High Speed Steel ◽  
Fatigue Property ◽  
High Temperature Fatigue

EFFECT OF BORON CONTENT ON HIGH-TEMPERATURE OXIDATION RESISTANCE OF B-BEARING HIGH-SPEED STEEL

2020 ◽  
Vol 27 (12) ◽  
pp. 2050023
Author(s):  
YINGHUA LIN ◽  
HUI LI ◽  
JIANG JU ◽  
CHANGCHUN JIANG ◽  
YONGPING LEI ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxide Film ◽  
Oxidation Resistance ◽  
Retained Austenite ◽  
High Speed ◽  
Boron Content ◽  
Unit Area ◽  
High Speed Steel ◽  
Mass Gain ◽  
Temperature Oxidation

The oxidation behavior of B-bearing high-speed steel was studied at 923[Formula: see text]K. The results showed that the as-cast microstructure of 1.0 wt.%B high-speed steel was composed of pearlite + ferrite + M7(C, B)3 + M2(B, C). When the boron content increased, the microstructure gradually changed into martensite + retained austenite + netlike M2(B, C) + M[Formula: see text](C, B)6 + M7(C, B)3. The cyclic oxidation of B-bearing high-speed steel at K followed parabolic rule. The unit area mass gain of 1 wt.%B high-speed steel was 4.2 g/m2 after 923 K/250 h oxidation, and the unit area mass gain of 3 wt.%B high-speed steel was only 3.5 g/m2. The oxidation of boron element formed B2O3, which was mainly enriched at the interface of the oxide film/matrix. B2O3 flowed in the oxide film at high temperature and was easy to fill the defect. B2O3 was easy to form B2O3-SiO2 borosilicate with SiO2. The more boron content was, the more favorable it was to form B2O3-SiO2 borosilicate oxide layer rich in B2O3 and the more favorable it was to spread in the oxide film, so that the oxidation resistance of B-bearing high-speed steel could be remarkably improved.

BRAETUF

Alloy Digest ◽  
1970 ◽  
Vol 19 (4) ◽  
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
High Speed ◽  
High Speed Steel ◽  
Heat Treating ◽  
Cutting Performance ◽  
High Temperature Alloys ◽  
Aisi Type

Abstract BRAETUF is a modified version of AISI Type M44 high-speed steel having superior cutting performance and superior wear resistance. It is an ultrahard high-speed steel recommended for machining highly alloyed steels at high hardnesses and also heat teated high temperature alloys. This datasheet provides information on composition and hardness. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-229. Producer or source: Magnesium Elektron Inc..

AL TECH SUPER LMW-EXTRA

Alloy Digest ◽  
1981 ◽  
Vol 30 (10) ◽  
Keyword(s):  
High Temperature ◽  
High Speed ◽  
Cutting Tool ◽  
High Speed Steel ◽  
Heat Treating ◽  
Temperature Performance ◽  
Heat Treated ◽  
Aircraft Alloys ◽  
Red Hardness ◽  
Specialty Steel

Abstract AL Tech Super LMW-Extra is high-molybdenum high-speed steel containing 8.25% cobalt to improved red hardness. It is most useful for cutting-tool applications in which wear resistance and high-temperature hardness are important properties. This grade should not be use where excessive shock or chatter are encountered. Super LMW-Extra is well suited to applications such as machining hard and heat-treated materials and machining both ferrous and nonferrous aircraft alloys. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on high temperature performance as well as heat treating and machining. Filing Code: TS-388. Producer or source: AL Tech Specialty Steel Corporation.

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