...低焊接裂纹敏感性； 大线能量焊接； 焊接热影响粗晶区；微观组织； 针状铁素体[gap=1064]Key words: HSLA steel; low susceptivity to weld cracking; large heat input welding; coarse grain heat affected zone; microstructure; aci..
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A new large heat input welding high strength low alloy steel with low susceptivity to weld cold cracking was developed and the cold strain aging behavior was investigated.
研制了一种低焊接裂纹敏感性高能量输入焊接用低合金高强钢，并研究了其冷应变时效行为。
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