Electrochemical, Isotherm, and Material Strength Studies of Cucumeropsis mannii Shell Extract on A515 Grade 70 Carbon Steel in NaCl Solution

Table 6

Batch experimental results showing CMSE influence on corrosion rate, yield strength, Young modulus, and hardness of carbon steel in 1.0 M NaCl at different temperature, time, and load.

Run	(°C)	(day)	(g L^-1)	Corrosion rate (mm/y)		Load ()	Young modulus (GPa)		Hardness (BHN)
				With CMSE	Without CMSE		With CMSE	Without CMSE	With CMSE	Without CMSE
1	30	1	10	0.096	0.306	30000	198.9	187.8	104.1	99
2	60	1	10	0.36	1.211	15000	196.4	189.1	97.2	93.4
3	30	5	10	0.125	0.475	15000	198.7	188.6	106.4	101.6
4	60	5	10	0.516	1.348	30000	180.9	171.7	89.4	86.4
5	45	3	6	0.329	1.587	22500	186.4	178.1	96.1	92.1
6	45	3	6	0.306	0.818	7500	199.5	194.2	100.8	97
7	45	3	14	0.216	0.648	22500	187.4	183.7	99.6	95.7
8	30	5	2	0.197	0.591	15000	193.1	183.2	102.3	97.6
9	30	5	10	0.139	0.417	30000	191.3	183.9	98.7	93.7
10	45	3	2	0.37	1.019	22500	182.6	176.9	95.5	91
11	45	3	6	0.285	0.955	22500	185.6	178.1	98.5	93.8
12	45	3	6	0.351	1.153	37500	179.6	174.4	93.8	89.6
13	45	3	6	0.333	0.882	22500	191.1	178.1	95.8	91.8
14	45	3	6	0.296	0.888	22500	184.8	178.1	97.2	92.6
15	45	3	6	0.309	0.927	22500	183.1	178.1	96.7	92.1
16	15	3	6	0.131	0.593	22500	197.3	194.2	103.8	100.4
17	30	1	10	0.0728	0.218	15000	202.4	194.8	112.3	107.2
18	45	1	6	0.241	0.923	22500	188.2	181.7	97.7	94.3
19	60	1	2	0.604	1.812	30000	176.7	170.4	88.8	86
20	75	3	6	0.388	1.164	22500	181.2	173.8	94.3	91.5
21	30	5	2	0.183	0.549	30000	189.6	180.5	97.9	92.4
22	45	3	6	0.372	1.156	22500	182.6	178.1	94.8	91.1
23	60	1	10	0.389	1.177	30000	178.4	172	92.3	89
24	45	7	6	0.412	1.256	22500	179.7	176.3	93.2	89.1
25	60	5	2	0.733	2.199	15000	184.1	178.7	92.1	87.9
26	30	1	2	0.128	0.364	30000	195.9	188.6	101.1	96.4
27	30	1	2	0.103	0.319	15000	200.8	193.6	109.6	104.3
28	60	5	2	0.781	2.373	30000	174.6	165.9	86.3	84.4
29	60	5	10	0.464	1.692	15000	195.5	186.5	94.4	90.8
30	60	1	2	0.589	1.767	15000	194.3	185.5	93.6	90.3