景德镇历代青花瓷胎釉化学组成的多元统计分析

通过对４４个景德镇历代青花瓷的胎，釉化学成分别进行了多元统计分析，结果表明，根据景德镇历代青花瓷的胎，釉配方的演变规律，基本上划元，明，清三个阶段，综合胎，釉判别函数的判别时效，可较明确地推断未知样品的所属朝代。     

拟薄水铝石结构的演化

以理学Ｄ／ｍａｘ－３ＢＸ射线衍射仪，ＴＧ－ＤＴＡ，ＩＲ－４４０红外光谱等方法，研究了拟薄水铝石结构的演化。     

稀土元素对析氯电位的影响

介绍了在Ｒｕ、Ｔｉ中加入稀土元素Ｎｄ、Ｌａ、Ｅｕ对析氯电位的影响。结果表明该体系具有较低的析氯电位、极化率,但强化寿命不合要求。     

Orientational growth behavior and mechanism of delta(δ)phase precipitation in cold-rolled Inconel 718 alloy during heat treatment

Due to the important role of δ phase's quantity and morphology in the mechanical and fatigue properties of Inconel 718 alloy and its components,it is necessary to renew insights into the effect of cold deformation on the δ phase precipitation,especially on the morphology evolution.Therefore,the nucleation and growth behavior of δ phase in cold-rolled Inconel 718 alloy during aging were investigated.The results show that the precipitation rate and volume fraction of δ phase increase with increasing the cold rolling reduction from 10％to 50％.The volume fraction of δ phase reaches equilibrium after 5 h,remaining at 5.98％,6.52％,and 6.79％under different rolling reductions(10％,30％,and 50％),respectively.The nucleation of δ phase mainly occurs on different sites(grain boundaries,new twin boundaries and old twin boundaries)under 10％rolling reduction,while δ phase mainly nucleates on the new grain boundaries of static recrystallization due to 50％rolling reduction.And the growth of δ phase undergoes a process of alternate orientation growth from spherical(nucleation)→ short rod(longitudinal orientation growth)→ short rod(radial orientation growth)→ dynamic equilib-rium.Under 10％rolling reduction,δ phase tends to grow into the matrix,while under 50％rolling reduction,the orientation grows faster and is easily affected by the grain boundary curvature.