Redistribution of interstitial impurities in the structure of low-alloy powder metallurgy tungsten alloys in deformation

1990 ◽  
Vol 29 (12) ◽  
pp. 999-1002
Author(s):  
O. G. Radchenko ◽  
N. I. Danilenko ◽  
S. S. Ponomarev ◽  
V. V. Panichkina
Keyword(s):  
Powder Metallurgy ◽  
Alloy Powder ◽  
Tungsten Alloys ◽  
Interstitial Impurities ◽  
Powder Metallurgy Tungsten

scholarly journals Recrystallization Process of Powder Metallurgy Tungsten Wires

1989 ◽  
Vol 53 (12) ◽  
pp. 1198-1207 ◽  
Author(s):  
Shu-Fan Chen ◽  
Hiroyuki Komeda ◽  
Koji Fujii ◽  
Koji Tanoue ◽  
Hidehiko Matsuda
Keyword(s):  
Powder Metallurgy ◽  
Recrystallization Process ◽  
Powder Metallurgy Tungsten

Sliding wear behaviour of Al-Si alloy–fly ash composites produced by powder metallurgy technique

2017 ◽  
Vol 69 (2) ◽  
pp. 241-247 ◽  
Author(s):  
H. Siddhi Jailani ◽  
A. Rajadurai ◽  
B. Mohan ◽  
T. Sornakumar
Keyword(s):  
Cast Iron ◽  
Fly Ash ◽  
Powder Metallurgy ◽  
Alloy Powder ◽  
Base Alloy ◽  
Wear Behaviour ◽  
Damping Capacity ◽  
Powder Metallurgy Technique ◽  
Sliding Speed ◽  
Content Type

Purpose Metal matrix composites (MMCs) are commonly used in many aerospace and industrial applications. MMCs possess significantly improved properties including high specific strength, specific modulus, damping capacity and good wear resistance compared to unreinforced alloys. The purpose of this paper is to describe the tribological studies of Al-Si alloy–fly ash composites manufactured using powder metallurgy technique. Design/methodology/approach Al-Si (12 Wt.%) alloy–fly ash composites were developed using powder metallurgy technique. Al-Si alloy powder was used as matrix material, and the fly ash was used as reinforcement. The particle size of Al-Si alloy powder was in the range of 75-300 μm, and the fly ash was in the range of 1-15 μm. The friction and wear characteristics of the composites were studied using a pin-on-disc set up. The test specimen was mated against cast iron disc, and the tests were conducted with the loads of 10, 20 and 30 N, sliding speeds of 0.5, 1 and 1.5 m/s for a sliding distance of 2,000 m. Findings The effects of load and sliding speed on tribological properties of the base alloy and Al-Si alloy–fly ash composites pins on sliding with cast iron disc are evaluated. The wear rate of Al-Si alloy–fly ash composites is lower than that of base alloy, and it increases with increasing load and sliding speed. The coefficient of friction of Al-Si alloy–fly ash composites is increased as compared with base alloy. Practical implications The development of Al-Si alloy–fly ash composites produced by powder metallurgy technique will modernize the automobile and other industries because near net shape at low cost and good mechanical properties are obtained. Originality/value There are few papers available on the development and tribological studies of Al-Si alloy–fly ash composites produced by powder metallurgy technique.

ANCORSTEEL 2000

Alloy Digest ◽  
2010 ◽  
Vol 59 (10) ◽  
Keyword(s):  
Fracture Toughness ◽  
Powder Metallurgy ◽  
Physical Properties ◽  
Production Process ◽  
Tensile Properties ◽  
Molten Steel ◽  
Alloy Powder ◽  
Powder Metal ◽  
Metal Parts ◽  
Powder Production

Abstract Ancorsteel 2000 is a water atomized low-alloy powder metal containing Ni, Mo, and Mn and is useful in powder metal parts requiring greater hardenability. In the powder production process used to make Ancorsteel, molten steel is atomized into irregular, homogeneous particles which are then annealed to produce uniform, dependable steel powders. Ancorsteel grades are designed for powder metallurgy parts requiring densities exceeding 6.7 g/cm^3 (0.24 lb/in.^3). This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness. It also includes information on powder metal forms. Filing Code: CS-157. Producer or source: Hoeganaes Corporation.

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