1) delayed crack along the grain boundary
沿晶延迟裂纹
2) delay crack
延迟裂纹
1.
This trifurcated connector is with the features of optimized welding process and thermal process can avoid bigger delay crack and constrain stress.
介绍了中、高压管线系统中焊制三通的具体制造情况 ,该三通具有合理的对口标准、严格优选的焊接工艺和热处理工艺 ,并且克服了延迟裂纹及拘束应力过大等不利因素。
3) delayed crack
延迟裂纹
1.
The result showed that the crack of feed-water pipe saddle was a delayed crack,because welding procedure code didn\'t control well,carbon equivalent of welding components have obvious quench trend and welding didn\'t avoiding hydrogen treatment,welding structure and larger thickness of welding components occured constrain stress etc.
结果表明:由于焊接工艺规范控制不当,未及时进行消氢处理,焊件的碳当量提高具有明显的淬硬倾向,焊接结构和较大的焊件厚度引起拘束应力等综合作用产生了延迟裂纹。
4) intergranular crack
沿晶裂纹
1.
The results show that working for long time under high temperature,the wall of reheater pipe is severely thinned with action of oxidation and erosion on the inside and outside surface,and the material of pipe becomes brittle and the intergranular crack forms.
结果表明,由于长时高温运行,再热器管在内外表面氧化腐蚀作用下,管壁严重减薄,材料组织脆化,形成沿晶裂纹,管子不足以承受管内蒸汽压力,形成脆性开裂爆口。
2.
The intergranular cracks found in transition zone were also analyzed and some advices were put forward.
结果表明,两起事故都是由叶片激光熔覆层中缺陷引起的疲劳断裂,同时还分析了过渡区附近的沿晶裂纹产生原因,并提出了一些建议。
5) hydrogen embrittlement crack
氢致延迟裂纹
1.
The results show that tiny crack main by using the unqualified protect gas(Ar)during welding could cause the increasing hydrogen contain in the weld area,created the hydrogen embrittlement crack.
7倍,在焊缝热影响区造成增氢,导致氢致延迟裂纹的产生。
6) weld delayed crack
焊接延迟裂纹
1.
Influence of ambient humidity on weld delayed crack of Cu-age-hardening steel;
环境湿度对铜时效硬化钢焊接延迟裂纹的影响
补充资料：延迟裂纹
分子式：
CAS号：
性质：冷裂纹中一种比较普遍的形态，它的主要特点是在焊后并不立即出现，而要经过几小时、几十小时或更长时间的孕育期才形成的冷裂纹，由于产生延迟现象，故称延迟裂纹。此类裂纹的生成和扩展决定于材料的淬硬倾向、焊接接头的应力状态和焊缝金属扩散氢的含量等三个因素交互作用的结果。
CAS号：
性质：冷裂纹中一种比较普遍的形态，它的主要特点是在焊后并不立即出现，而要经过几小时、几十小时或更长时间的孕育期才形成的冷裂纹，由于产生延迟现象，故称延迟裂纹。此类裂纹的生成和扩展决定于材料的淬硬倾向、焊接接头的应力状态和焊缝金属扩散氢的含量等三个因素交互作用的结果。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条