Weld overlay coatings for erosion control. Task A: Literature review, progress report
A literature review was made. In spite of similarities between abrasive wear and solid particle erosion, weld overlay hardfacing alloys that exhibit high abrasion resistance may not necessarily have good erosion resistance. The performance of weld overlay hardfacing alloys in erosive environments has not been studied in detail. It is believed that primary-solidified hard phases such as carbides and intermetallic compounds have a strong influence on erosion resistance of weld overlay hardfacing alloys. However, relationships between size, shape, and volume fraction of hard phases in a hardfacing alloys and erosion resistance were not established. Almost all hardfacing alloys can be separated into two major groups based upon chemical compositions of the primary solidified hard phases: (a) carbide hardening alloys (Co-base/carbide, WC-Co and some Fe base superalloys); and (b) intermetallic hardening alloys (Ni-base alloys, austenitic steels, iron-aluminides).
- Research Organization:
- Lehigh Univ., Bethlehem, PA (United States). Energy Research Center
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-92PC92542
- OSTI ID:
- 10149280
- Report Number(s):
- DOE/PC/92542-T1; ON: DE93013592
- Resource Relation:
- Other Information: PBD: 3 Mar 1993
- Country of Publication:
- United States
- Language:
- English
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