Ensayo de dureza | 89/93 | UPV

Title: Hardness Testing Description: Hardness Testing García Sanoguera, D. (2008). Hardness Testing. http://hdl.handle.net/10251/1368 Automatic description: In this video, the professor from the Polytechnic University of Valencia explains the concept of hardness and methods for measuring it, such as Brinell, Vickers, and Rockwell hardness, focusing on engineering hardness and related tests. He defines hardness as the resistance to plastic deformation, whether by scratching or penetration, and distinguishes between mineralogical hardness, measured on the Mohs scale, and engineering hardness. Engineering hardness is determined based on the size of the indentation left by an indenter or the depth of penetration, being inversely proportional to these. He uses images to illustrate how the measurement is performed and describes the specific tests: Brinell hardness measures the applied load divided by the indentation of a metal sphere and is for soft materials; Vickers hardness uses a diamond pyramid to penetrate hard or hardened materials; and Rockwell hardness is based on penetration depth, suitable for materials ranging from very hard to relatively soft. Finally, he mentions the conditions that the specimens must meet, such as having a smooth surface and minimum thickness, as well as maintaining the applied load under control. He also emphasizes that the surface must be clean and free of defects, especially for Brinell and Vickers hardness tests. He concludes by highlighting the importance of hardness testing in evaluating the strength of materials. Author: García Sanoguera David Course: This video is 89/93 of the Materials Engineering Course | Polytechnic University of Valencia (UPV).    • Curso Ingeniería de materiales | Universit...   Polytechnic University of Valencia (UPV): https://www.upv.es More videos at:    / valenciaupv   Access our MOOCs: https://upvx.es #Hardness #Fatigue #Mechanical Testing #Impact #Mechanical Properties #Tension #Materials #