When selecting a welding process for joining dissimilar metals in a pipeline system, several key considerations are critical to ensure a sound and reliable weld. The compatibility of the metals being joined is paramount. Differences in melting points, thermal expansion coefficients, and chemical compositions can lead to welding difficulties and potential joint failures. For example, welding carbon steel to stainless steel requires careful selection of filler metal to avoid dilution effects that can cause cracking. The formation of brittle intermetallic compounds at the weld interface must be avoided. These....
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