A study of the debinding and sintering behavior of T42 high-speed steel produced by powder injection molding (PIM)

A study of the debinding and sintering behavior of T42 high-speed steel produced by powder... Tool steels have a large range of applications including hot and cold working of metals and injection molding of plastic or light alloys. High-speed steel (HSS) is specifically used for cutting tools and for components subjected to extreme wear conditions, because of its high strength, wear resistance, hardness, toughness, and fatigue resistance. The microstructure of HSS can be described as a metallic matrix iron composite containing a dispersion of hard and wear-resistant carbides. Specimens were manufactured experimentally from T42 powder (50–80 vol%) and mixed binder (20–50 vol%) by powder injection molding. The binders (green parts) were debound in n-hexane solution at 60 °C for 8 h and thermally debound in a mixed N2–H2 gas atmosphere for 8 h. Specimens were sintered under high vacuum (10−5 Torr) at different temperatures. When sintering was performed at 1,260 °C, the specimen sintered under high vacuum had the highest hardness (550 Hv). The carbides were smaller (1 μm) and well distributed. Grain size was 10 μm. When sintering was performed under high vacuum at temperatures above 1,280 °C the carbides changed to eutectic carbide located at grain boundaries. Grain growth was observed. Specimens sintered at other pressures had lower density and hardness than those sintered under high vacuum. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

A study of the debinding and sintering behavior of T42 high-speed steel produced by powder injection molding (PIM)

Loading next page...
 
/lp/springer_journal/a-study-of-the-debinding-and-sintering-behavior-of-t42-high-speed-UF0oy2ik16
Publisher
Springer Journals
Copyright
Copyright © 2014 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-014-1649-y
Publisher site
See Article on Publisher Site

Abstract

Tool steels have a large range of applications including hot and cold working of metals and injection molding of plastic or light alloys. High-speed steel (HSS) is specifically used for cutting tools and for components subjected to extreme wear conditions, because of its high strength, wear resistance, hardness, toughness, and fatigue resistance. The microstructure of HSS can be described as a metallic matrix iron composite containing a dispersion of hard and wear-resistant carbides. Specimens were manufactured experimentally from T42 powder (50–80 vol%) and mixed binder (20–50 vol%) by powder injection molding. The binders (green parts) were debound in n-hexane solution at 60 °C for 8 h and thermally debound in a mixed N2–H2 gas atmosphere for 8 h. Specimens were sintered under high vacuum (10−5 Torr) at different temperatures. When sintering was performed at 1,260 °C, the specimen sintered under high vacuum had the highest hardness (550 Hv). The carbides were smaller (1 μm) and well distributed. Grain size was 10 μm. When sintering was performed under high vacuum at temperatures above 1,280 °C the carbides changed to eutectic carbide located at grain boundaries. Grain growth was observed. Specimens sintered at other pressures had lower density and hardness than those sintered under high vacuum.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: May 16, 2014

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off