scholarly journals A Comparative Study of Various Flow Instability Criteria in Processing Map of the Powder Metallurgy High Speed Steel

2021 ◽  
Vol 693 (1) ◽  
pp. 012070
Author(s):  
Zhaozhao Liu ◽  
Miao Wang ◽  
Yanhui Liu
Keyword(s):  
Powder Metallurgy ◽  
Comparative Study ◽  
High Speed ◽  
Processing Map ◽  
Flow Instability ◽  
High Speed Steel ◽  
Instability Criteria

A Comparative Study of Various Flow Instability Criteria in Processing Map

2010 ◽  
Vol 39 (5) ◽  
pp. 756-761 ◽  
Author(s):  
Ma Xiong ◽  
Zeng Weidong ◽  
Sun Yu ◽  
Zhao Yongqing ◽  
Wang Shaoli ◽  
...  
Keyword(s):  
Comparative Study ◽  
Processing Map ◽  
Flow Instability ◽  
Instability Criteria

VANADIS 23

Alloy Digest ◽  
1998 ◽  
Vol 47 (10) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Powder Metallurgy ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tool Steel ◽  
High Speed ◽  
High Speed Steel ◽  
Heat Treating

Abstract Vanadis 23 is a Cr-Mo-W-Va alloyed high-speed steel made by powder metallurgy. The tool steel offers an excellent combination of wear resistance and toughness. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on heat treating, machining, and surface treatment. Filing Code: TS-561. Producer or source: Uddeholm Corporation. See also Alloy Digest TS-552, March 1997.

Effect of Spark Plasma Sintering on the Microstructure Evolution and Properties of M3:2 High-Speed Steel

2014 ◽  
Vol 788 ◽  
pp. 329-333
Author(s):  
Rui Zhou ◽  
Xiao Gang Diao ◽  
Jun Chen ◽  
Xiao Nan Du ◽  
Guo Ding Yuan ◽  
...  
Keyword(s):  
Powder Metallurgy ◽  
Spark Plasma Sintering ◽  
High Speed ◽  
Bending Strength ◽  
Sintering Temperature ◽  
High Speed Steel ◽  
Continuous Heating ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
The Impact

Effects of sintering temperatures on the microstructure and mechanical performance of SPS M3:2 high speed steel prepared by spark plasma sintering was studied. High speed steel sintering curve of continuous heating from ambient temperature to 1200°C was estimated to analyze the sintering processes and sintering temperature range. The sintering temperature within this range was divided into groups to investigate hardness, relative density and microstructure of M3:2 high-speed steel. Strip and quadrate carbides were observed inside the equiaxed grains. SPS sintering temperature at 900°C can lead to nearly full densification with grain size smaller than 20μm. The hardness and bending strength are higher than that of the conventionally powder metallurgy fabricated ones sintered at 1270°C. However, fracture toughness of the high speed steel is lower than that of the conventional powder metallurgy steels. This can be attributed to the shape and distribution of M6C carbides which reduce the impact toughness of high speed steels.

BOEHLER S690 MICROCLEAN

Alloy Digest ◽  
2004 ◽  
Vol 53 (8) ◽  
Keyword(s):  
Powder Metallurgy ◽  
Physical Properties ◽  
Surface Treatment ◽  
High Speed ◽  
High Speed Steel ◽  
Heat Treating ◽  
Red Hardness

Abstract Boehler S690 Microclean is a high-speed steel with good red hardness. It is produced by powder metallurgy techniques. This datasheet provides information on composition, physical properties, and hardness. It also includes information on forming, heat treating, and surface treatment. Filing Code: TS-604. Producer or source: Böhler Edelstahl GMBH, Böhler-Uddeholm N. America.

Influence of Cutting Edge Radius on the Wear Resistance of Powder Metallurgy High-Speed Steel Milling Inserts

2006 ◽  
Vol 220 (3) ◽  
pp. 383-387 ◽  
Author(s):  
J Rech ◽  
M-J Schaff
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Powder Metallurgy ◽  
High Speed ◽  
High Speed Steel ◽  
Cutting Edge ◽  
Wear Behaviour ◽  
Cutting Inserts ◽  
Cutting Speeds ◽  
Scanning Electron

The wear behaviour of powder metallurgy high-speed steel (PM-HSS) milling inserts is investigated experimentally. Cutting inserts with different cutting edge radii tested at various feed rates and cutting speeds were examined. The radii have been obtained either by microsandblasting or by honing. The initiation and progress of the tool wear was analysed with scanning electron microscopy (SEM) of the cutting edges. The experimental results exhibit quantitatively the effect of tool radius on the performance of milling inserts. A radius on the cutting edge prevents fast and unpredictable wear, and can lead to a great improvement of the tool life.

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