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WELD METAL HAVING EXCELLENT SENSITIVITY TO HYDROGEN EMBRITTLEMENT RESISTANCE
WELD METAL HAVING EXCELLENT SENSITIVITY TO HYDROGEN EMBRITTLEMENT RESISTANCE
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机译:焊接金属对氢的抗渗性具有出色的敏感性
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摘要
Disclosed is a weld metal which is formed by gas-shielded arc welding using a flux-cored wire, and which has a specific chemical composition, in which retained austenite particles are present in a number density of 2500 per square millimeter or more and in a total volume fraction of 4.0% or more based on the total volume of entire structures of the weld metal. The weld metal has excellent hydrogen embrittlement resistance and is resistant to cracking at low temperatures even when the weld metal has a high strength.
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