Location

La Jolla, CA

Start Date

1-1-1998 12:00 AM

Description

The occurrence of porosity during alloy solidification is a significant factor in evaluating the quality of metal castings. In general, porosity forms when there is solidification shrinkage, failure of interdendritic feeding or exsolution of dissolved gas from the melt. The existence of porosity in castings is known to negatively effect mechanical properties, such as tensile strength, and fatigue life [1–4]. Foundry process computer simulations that help determine the location, size, shape and extent of porosity can be used by the casting designer to evaluate the probability of detecting porosity by NDE techniques.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

17B

Chapter

Chapter 7: New Inspection/Control Procedures

Section

Process Modeling/Control

Pages

1839-1846

DOI

10.1007/978-1-4615-5339-7_238

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Modeling of Microporosity Evolution During Solidification Processes

La Jolla, CA

The occurrence of porosity during alloy solidification is a significant factor in evaluating the quality of metal castings. In general, porosity forms when there is solidification shrinkage, failure of interdendritic feeding or exsolution of dissolved gas from the melt. The existence of porosity in castings is known to negatively effect mechanical properties, such as tensile strength, and fatigue life [1–4]. Foundry process computer simulations that help determine the location, size, shape and extent of porosity can be used by the casting designer to evaluate the probability of detecting porosity by NDE techniques.