Abstract
Vinyl-chloride monomer and poly-vinyl chloride are extensively used as raw materials by the plastic industry. Petrochemical plants that produce these raw materials are often highly structured units employing a wide variety of engineering materials in their construction and design. The selection of a particular material is based on the performance of a component required under specific conditions. This paper describes the materials' evaluation of a dryer support component used in the drying unit of a PVC plant. The component was made of 304-type stainless steel and was fractured after a relatively-short period of service. Various techniques used for materials analysis included scanning-electron microscopy combined with energy dispersive X-ray spectroscopy and diffraction. The dryer support appeared to fail by hydrogen-induced cracking (HIC). Based upon the results obtained, it was recommended to use an alloy more resistant to hydrogen-induced cracking such as the 309-type stainless steel.
| Original language | English |
|---|---|
| Pages | 131-135 |
| Number of pages | 5 |
| Volume | 52 |
| No | 4 |
| Specialist publication | Corrosion Prevention and Control |
| State | Published - Dec 2005 |
ASJC Scopus subject areas
- Metals and Alloys
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