Journal of Material Sciences & Engineering

Kaupp G

Publications

• Research Article
  Challenge of Industrial High-load One-point Hardness and of Depth Sensing Modulus
  Author(s): Kaupp GKaupp G
  
  The physics of industrial single-point force indentation hardness measurements (Vickers, Knoop, Brinell, Rockwell, Shore, Leeb, and others) is compared with the depth-sensing nano, micro, and macro instrumental hardness technique that provides several further mechanical parameters, when using the correct force/depth curves exponent 3/2 on the depth of the loading curves. Only the latter reveal phase change onset with transition energy, and temperaturedependent activation energy, which provides important information for applications of all types of solids, but is not considered in the ISO or ASTM standards. Furthermore, the high-load one-point techniques leave the inevitably even stronger and more diverse consecutive phase-transformations undetected, so that the properties of pristine materials are not obtained. But materials are mostly not (continuously) applied under so high load, wh.. Read More»
  DOI: 10.4172/2169-0022.1000348

  Abstract PDF