Analysis of interlaboratory test results of solid particle impingement erosion

• Published in: Wear 1986-04, Vol.108 (4), p.323-335
• Main Author: Ruff, A.W.
• Format: Article
• Language: English
• Subjects: Applied sciences; Condensed matter: structure, mechanical and thermal properties; Contact of materials. Friction. Wear; Cross-disciplinary physics: materials science; rheology; erosion; Exact sciences and technology; laboratories; Materials science; Mechanical and acoustical properties of condensed matter; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology; Metals, semimetals and alloys; Metals. Metallurgy; Physics; solids; Specific materials; stainless steel
• ISSN: 0043-1648; 1873-2577
• DOI: 10.1016/0043-1648(86)90010-4

During the development of a standard method for solid particle impingement erosion testing of materials, a number of interlaboratory test comparisons were conducted. In this paper the results of four test series involving twelve laboratories in total are described. The measurements were carried out with considerable care using the gas jet type of erosion tester, involving nearly the same conditions and test parameters on two different materials, a low carbon steel and a stainless steel. The final results indicated a high degree of within-laboratory precision and a moderate degree of between-laboratory precision of erosion loss determinations. A need for standard materials was identified to control sources of measurement bias between laboratories. The principal source of random error in these studies was believed to be associated with the measurements of particle impact velocity.