id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
alkej-465	Hussein, Abbas Kh.; Abbas, Laith K.; Hasan, Wisam N.	تأثير اختلاف وسط التقسية على السلوك الميكانيكي لفولاذ مقاوم للصدأ مارتنسياتي	2019	12	.pdf	application/pdf	4754	213	55	The variables of quenching heat treatment were austenitizing temperature (985 C˚,1060 C˚),a soaking times (50,70 and 90 minutes) respectively, Percentage of volumetric fractions of nanoparticles with three different levels(0.01, 0.03 and 0.08 %) were prepared by dispersing nanoparticles that are (α-Al2O3,TiO2 and CuO) with base fluids (De-ionized water, salt solution and engine oil).The specimens were tempered at 700°C after quenching of nanofluids for (2 hours).The results for ( S/N) ratios showed the order of the factors in terms of the proportion of their effect on hardness, and wear rate properties as follow: Austenitizing temperature ( 1060 C˚),Type of base media (salt solution), Nanoparticles type (CuO), Percentage of nanoparticles (0.08%) and Soaking time(90min) was the least influence while for the impact energy were as follows: 3-From response table for (S/N ) ratio with respect to the hardness and wear rate we can marked on the most important factor where the ranking of factors as follows in terms of the proportion of their effect on hardness, and wear rate properties: Austenitizing temperature (1060C˚), Type of base media (salt solution), Nanoparticles type (CuO), Percentage of nanoparticles (0.08%)and Soaking time(90min) was the least influence while for the impact energy were as follows: Type of base media (oil), Austenitizing temperature (985C˚), Percentage of nanoparticles(0.01%), Nanoparticles type (α- Al2O3) and last soaking time (50min).	cache/alkej-465.pdf	txt/alkej-465.txt