摘要
在焊接低合金高强度钢 (X6 5钢种以上 )时 ,焊缝 (特别是内焊 )时有出现细微的裂纹和热影响区中出现低塑性的脆硬组织 。
During the welding of low alloy high strength (X65 and above), the fine crack occurs in the weld (especially inner weld) and the low plastic hard brickle structure occurs in the Heat Affected Area (HAZ) sometime. This article mainly analysis the weld character and the crack producing mechanism.
出处
《焊管》
2001年第3期24-26,共3页
Welded Pipe and Tube
关键词
低合金高强度钢
脆性
裂纹
焊缝
焊接
low alloy steel high strength brittleness crack weld seam
