1981
DOI: 10.1007/bf02643561
|View full text |Cite
|
Sign up to set email alerts
|

The asquenched microstructure and tempering behavior of rapidly solidified tungsten steels

Abstract: Transmission electron microscopy, and microhardness testing were used to examine the as-quenched structure and mechanical properties of a series of rapidly solidified (R.S.) iron-tungsten-carbon-alloys ranging from 6 to 23 percent tungsten with a constant W:C atomic ratio of 2:1, and Tl high speed tool steel. The R.S. iron-tungsten-carbon alloys were found to exhibit a significant change in microstructure and hardness as the tungsten and carbon content was increased. The change in morphology was from lath mart… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1

Citation Types

0
5
0

Year Published

1983
1983
2016
2016

Publication Types

Select...
6
3

Relationship

1
8

Authors

Journals

citations
Cited by 32 publications
(5 citation statements)
references
References 7 publications
0
5
0
Order By: Relevance
“…In general, it has proved quite difficult to predict or interpret the microstructures of rapidly solidified crystalline alloys. There are several reasons for this; (a) the difficulty of measuring cooling rates during rapid solidification (5,6); (b) the inherent variability of many rapid solidification processes (5); (c) the difficulty of resolving fine-scale rapidly solidified microstructures (7,B) and (d) the co~plex alloy systems which often have been studied, such 'as high-speed tool steels (9) and nickel-base superalloys (7).…”
mentioning
confidence: 99%
“…In general, it has proved quite difficult to predict or interpret the microstructures of rapidly solidified crystalline alloys. There are several reasons for this; (a) the difficulty of measuring cooling rates during rapid solidification (5,6); (b) the inherent variability of many rapid solidification processes (5); (c) the difficulty of resolving fine-scale rapidly solidified microstructures (7,B) and (d) the co~plex alloy systems which often have been studied, such 'as high-speed tool steels (9) and nickel-base superalloys (7).…”
mentioning
confidence: 99%
“…(r~/4a) or z 2 + y2 >> r~ 2; i.e., far away from the laser beam, as in our case, [8] where p is the density and c the heat capacity. The value of z0 depends on the area one is interested in.…”
Section: ( T ) =mentioning
confidence: 72%
“…Several authors have investigated laser treatments on different types of steel. [1][2][3][4][5][6][7][8][9][10][11][12][13] The hardness and wear resistance is improved with respect to conventionally quenched steel. [4.7.9-12] When a laser is used in practical applications, it is usually necessary to scan the complete surface, i.e., the laser beam passes a previous track a small distance away.…”
Section: Introductionmentioning
confidence: 99%
“…The cooling rate during solidification plays an crucial role in the final microstructure of high speed steels. The well known beneficial effects of rapid solidification, namely the refinement of grain size, homogenization of microstructure and extension of solid solubility, lend themselves well to typical microstructural problems found in conventional steels, such as an inhomogeneous microstructure with a coarse dispersion of carbides [3]. With high cooling rate, spray forming technique has been proven to be a powerful technology for the production of homogenously solidified fine-grained materials with exceptional properties [4,5].…”
Section: Introductionmentioning
confidence: 99%