【摘要】：為了研究爆炸焊接對ITER級CuCrZr合金性能的影響,針對爆炸焊接法制備的ITER屏蔽包層第一壁模塊CuCrZr/316L(N)復(fù)合板,采用不同的固溶工藝進行處理。綜合利用光學(xué)顯微鏡、場掃描電子顯微鏡和透射電鏡,對整個工藝過程中CuCrZr合金的微觀結(jié)構(gòu)進行觀察與分析,測試并評估了CuCrZr合金的硬度和拉伸性能。結(jié)合Gerold公式,計算了過時效狀態(tài)下CuCrZr合金抗拉強度增量的范圍。結(jié)果表明,固溶處理可以有效修復(fù)因爆炸荷載沖擊造成的合金組織變形,經(jīng)過固溶(980℃,30min)和熱等靜壓(580℃,145 MPa,2h)處理后,結(jié)合界面CuCrZr一側(cè)的硬度達到120HV,抗拉強度大于380MPa,顯微組織呈現(xiàn)晶粒均勻細小等軸晶組織形態(tài),平均晶粒尺寸直徑為98μm,綜合性能達到ITER標準。
[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，

本文編號：2311649