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Methods and Test Procedures for Measuring Deposit Stress and the Formulas Employed for Calculating Stress Values

机译:用于测量沉积应力的方法和试验程序和用于计算应力值的公式

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Internal stress exists as an inherent force within electroplated and chemically applied metallic deposits. This induced stress can be tensile or compressive in nature, causing the deposit to contract or expand in relation to the base material High levels of stress in deposits produce micro-cracking and macro-cracking, and in severe cases produce a lack of deposit adhesion in the form of blistering, peeling, and flaking. In extreme cases, wave-like ripples in electroforms, accelerated corrosion and deposit wear failure can also occur.
机译:内应力作为电镀和化学施加的金属沉积物内的固有力。这种诱导的应力本质上是拉伸或压缩的,导致沉积物与基材的沉积物相结合或扩展沉积物中的高水平应力产生微裂解和宏观裂纹,并且在严重的情况下产生缺乏沉积物粘附起泡,剥落和剥落的形式。在极端情况下,还可以发生电铸件的波浪状涟漪,也可能发生加速腐蚀和沉积磨损失效。

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