Effect loading force and number of observation accuracy of aged inconel 718

Zulkeflee, Muhammad Fikri (2014) Effect loading force and number of observation accuracy of aged inconel 718. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

	Text (24 Pages) EFFECT LOADING FORCE AND NUMBER OF OBSERVATION ACCURACY OF AGED INCONEL 718 24pages.pdf - Submitted Version Download (902kB)
	Text (Full Text) Effect loading force and number of observation accuracy of aged inconel 718.pdf - Submitted Version Restricted to Repository staff only Download (8MB)

Abstract

This experiments was investigated the effect loading force and number observation accuracy of aged Inconel 718. Aged Inconel 718 have known hardness value which is 450 HV is one material that aging at 680 degree Celsius. After that, this experiment applied in the same sample over a wide range of loads indented. This caused of problems in indentation size effect which is at very low loads test results on a same material is not constant. Besides that, in term of Vickers tests with an applied load of 0.05 to 0.03 kgf, measured hardness values are usually equivalent within statistical precision The variation HV was observe in term of different load indented and number of observation. It found that for the same material the Vickers microhardness decrease with increasing of test loads. Number observation also was investigated. This is for determine the best of number observation in term of getting the accurate value hardness. So, this experiment determines 20 times of measurement give the accurate of required values. Finally, it concluded that variation of load indented was affect to values of hardness required.

Actions (login required)

View Item