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Design and construction of an experimental HIP system comprising in-situ ultrasonic sound wave velocity measurements

Technical Report:

Abstract

Hot Isostatic Pressing (HIP) is a process used to manufacture engineering components from metallic and ceramic powders, to diffusion-bond materials and to heal defects in castings. Powder densification is performed by encapsulating the powder in a sealed container and applying isostatic pressure at it. The collapsing of the can plastically deforms the powder particles and when temperature is raised, creep and diffusion mechanisms become active. The sintering processes, provided that sufficient time is allowed, lead to a fully dense and pore-free material. In many cases, a material made from powder by HIP, has mechanical properties superior to those manufactured using other methods. The properties of a material produced by HIP is a function of the process parameters - temperature, pressure and time. until quite recently those parameters were set through numerous HIP cycles accompanied by testing the end products to determine their properties. Metallurgical and economical reasons encourage researchers to propose ways for the in-situ monitoring of the processes taking place in the specimen as it is being HIP`ed. Several techniques including the Ashby model or inserting a dilatometer or an eddy current transducer into the pressure vessel are under consideration. A unique system developed at NRCN aimed at the  More>>
Publication Date:
Apr 01, 1993
Product Type:
Technical Report
Report Number:
NRCN(TN)-146
Reference Number:
SCA: 360601; 360101; 360201; PA: AIX-25:005622; EDB-94:013580; ERA-19:007064; NTS-94:014823; SN: 94001126084
Resource Relation:
Other Information: PBD: Apr 1993
Subject:
36 MATERIALS SCIENCE; HOT PRESSING; ULTRASONIC TESTING; QUALITY CONTROL; SPECIFICATIONS; ULTRASONIC WAVES; 360601; 360101; 360201; PREPARATION AND MANUFACTURE; PREPARATION AND FABRICATION
OSTI ID:
10112905
Research Organizations:
Israel Atomic Energy Commission, Beersheba (Israel). Nuclear Research Center-Negev
Country of Origin:
Israel
Language:
Hebrew
Other Identifying Numbers:
Other: ON: DE94610395; TRN: IL9305432005622
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
26 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Tamsut, S, Feuerlicht, Y, Ganor, M, Kalir, D, and Yeheskel, O. Design and construction of an experimental HIP system comprising in-situ ultrasonic sound wave velocity measurements. Israel: N. p., 1993. Web.
Tamsut, S, Feuerlicht, Y, Ganor, M, Kalir, D, & Yeheskel, O. Design and construction of an experimental HIP system comprising in-situ ultrasonic sound wave velocity measurements. Israel.
Tamsut, S, Feuerlicht, Y, Ganor, M, Kalir, D, and Yeheskel, O. 1993. "Design and construction of an experimental HIP system comprising in-situ ultrasonic sound wave velocity measurements." Israel.
@misc{etde_10112905,
title = {Design and construction of an experimental HIP system comprising in-situ ultrasonic sound wave velocity measurements}
author = {Tamsut, S, Feuerlicht, Y, Ganor, M, Kalir, D, and Yeheskel, O}
abstractNote = {Hot Isostatic Pressing (HIP) is a process used to manufacture engineering components from metallic and ceramic powders, to diffusion-bond materials and to heal defects in castings. Powder densification is performed by encapsulating the powder in a sealed container and applying isostatic pressure at it. The collapsing of the can plastically deforms the powder particles and when temperature is raised, creep and diffusion mechanisms become active. The sintering processes, provided that sufficient time is allowed, lead to a fully dense and pore-free material. In many cases, a material made from powder by HIP, has mechanical properties superior to those manufactured using other methods. The properties of a material produced by HIP is a function of the process parameters - temperature, pressure and time. until quite recently those parameters were set through numerous HIP cycles accompanied by testing the end products to determine their properties. Metallurgical and economical reasons encourage researchers to propose ways for the in-situ monitoring of the processes taking place in the specimen as it is being HIP`ed. Several techniques including the Ashby model or inserting a dilatometer or an eddy current transducer into the pressure vessel are under consideration. A unique system developed at NRCN aimed at the in-situ monitoring of sintering processes is presented. It is based on the continuous measurement of sound wave velocity in the HIP`ed material. The construction of a HIP comprising ultrasonic sound waves velocity measurement facility is described. Some results of experiments in which the relationship between sound velocity and the material`s quality are given. (authors).}
place = {Israel}
year = {1993}
month = {Apr}
}