爆炸焊接对ITER级CuCrZr合金性能的影响

发布时间：2018-11-05 09:30

【摘要】：为了研究爆炸焊接对ITER级CuCrZr合金性能的影响,针对爆炸焊接法制备的ITER屏蔽包层第一壁模块CuCrZr/316L(N)复合板,采用不同的固溶工艺进行处理。综合利用光学显微镜、场扫描电子显微镜和透射电镜,对整个工艺过程中CuCrZr合金的微观结构进行观察与分析,测试并评估了CuCrZr合金的硬度和拉伸性能。结合Gerold公式,计算了过时效状态下CuCrZr合金抗拉强度增量的范围。结果表明,固溶处理可以有效修复因爆炸荷载冲击造成的合金组织变形,经过固溶(980℃,30min)和热等静压(580℃,145 MPa,2h)处理后,结合界面CuCrZr一侧的硬度达到120HV,抗拉强度大于380MPa,显微组织呈现晶粒均匀细小等轴晶组织形态,平均晶粒尺寸直径为98μm,综合性能达到ITER标准。
[Abstract]:In order to study the effect of explosive welding on the properties of ITER grade CuCrZr alloy, the first wall block CuCrZr/316L (N) composite plate of ITER shielding cladding prepared by explosive welding was treated by different solid solution process. The microstructure of CuCrZr alloy was observed and analyzed by optical microscope, field scanning electron microscope and transmission electron microscope. The hardness and tensile properties of CuCrZr alloy were tested and evaluated. Combined with Gerold formula, the range of tensile strength increment of CuCrZr alloy under overaging condition was calculated. The results show that the solution treatment can effectively repair the microstructure deformation of the alloy caused by blast load. After the treatment of solid solution (980 鈩，

本文编号：2311649