Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://link.springer.com/doi/10.1007/BF00552930 below:

Complex alloy powders produced by different atomization techniques: relationship between heat flow and structure

Pre-alloyed powders of Managing 300, IN-100, and MAR-M-509 alloys made by different atomization techniques are compared with respect to chemistry, size, morphology and microstructure. Depending on the process employed and on the size and morphology of the powders produced, measured oxygen contents and secondary dendrite arm spacings vary from 40 ppm to 2000 ppm and 2 to 12μm, respectively. For the Maraging 300 alloy the relationshipd=39.8ε ^−0.30 between secondary dendrite arm spacing,d, and local average cooling rate,ε, is established. A simple heat flow analysis is presented which permits calculation of heat-transfer coefficients and solidification times of powders using this relationship. For example, a heat-transfer coefficienth=3.9 × 10⁻³ cal cm⁻² sec⁻¹ ° C⁻¹ is calculated during solidification of steam atomized coarse powders of Maraging 300 alloy.

This is a preview of subscription content, log in via an institution to check access.

Springer+ Basic

€34.99 /Month

• Get 10 units per month
• Download Article/Chapter or eBook
• 1 Unit = 1 Article or 1 Chapter
• Cancel anytime

Price includes VAT (Germany)

Instant access to the full article PDF.

Institutional subscriptions

1. W. E. Brower, Jun, R. Strachan andM. C. Flemings,Cast Metals Research J. 6 (4) (1970) 176.

   Google Scholar 

2. W. E. Brower, Jun, “Solidification Structure Fracture Relations in Inclusion Bearing Iron”, Ph.D. Thesis, Department of Metallurgy and Materials Science, Massachusetts Institute of Technology (1969).

3. T. F. Bower, H. D. Brody andM. C. Flemings,Trans. Met. Soc. AIME 236 (1966) 624.

   Google Scholar 

4. M. C. Flemings, D. R. Poirer, R. V. Barone andH. D. Brody,J.I.S.I. 208 (1970) 371.

   Google Scholar 

5. R. K. Robinson, “Development of P/M Cobalt-Base Alloys Using Rapidly Quenched, Pre-Alloyed Powders”, Sc.D. Thesis, Department of Metallurgy and Materials Science, Massachusetts Institute of Technology (1973).

6. T. Z. Kattamis,Met. Trans. 2 (1971) 2000.

   Google Scholar 

7. T. Z. Kattamis andR. Mehrabian, to be published inJ. Mater. Sci.

Download references

1. Department of Metallurgy and Materials Science, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA

   P. A. Joly & R. Mehrabian

1. P. A. Joly
2. R. Mehrabian

Joly, P.A., Mehrabian, R. Complex alloy powders produced by different atomization techniques: relationship between heat flow and structure. J Mater Sci 9, 1446–1455 (1974). https://doi.org/10.1007/BF00552930

Download citation

• Received: 07 February 1974

• Accepted: 27 February 1974

• Issue Date: September 1974

• DOI: https://doi.org/10.1007/BF00552930

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4