دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a metal strip inserted into a system to monitor corrosion rate and to indicate corrosion inhibitor effectiveness. corrosion fatigue n: metal fatigue concentrated in corrosion pits. See fatigue.

a representative piece of metal cut to a specific size and shape that is immersed in a test bath of placed in the flow stream to enable an estimation of the active corrosion occurring in a given set of conditions.

a test strip of metal used in corrosion and erosion testing.

n: Make rock into a coupon similar to metallic stretching stick,and then put the coupon on the material testing machine to make the drawing test.

n: A turbulence generates in the conductive coupon under the effcet of alternating magnetic field ,the fault of the coupon can be inspected by measuring the altermation amount of the turblence