钛-不锈钢复合棒结合强度评价  

Evaluation on Bonding Strength of Titanium-Stainless Steel Cladding Bar

作　　者：裴大荣[1] 郭悦霞[1] 马东康[1] 黄翰章[1] 

机构地区：[1]西北有色金属研究院

出　　处：《稀有金属材料与工程》1997年第5期51-53,共3页Rare Metal Materials and Engineering

摘　　要：爆炸复合的有效工业应用是生产层状金属复合材料。使壁厚３．５ｍｍ的不锈钢管与钛棒爆炸复合，获得了与钛等强的钛－不锈钢复合棒。结合界面金相观察表明，界面附近的金属流动适度，避免了漩涡熔化和形成金属间化合物，完整的结合由不锈钢与钛直接形成。拉剪强度与钛的拉伸强度比值为０．６～０．７。检验结果表明，高强结合是由于存在于界面的金属原子间作用力起到了实质性作用。本质上这是一种冶金结合，同时又避免了许多冶金缺陷在界面出现。One of a number of important applications of explosive cladding is to produce layer-metal composites. The strength of a titanium bar explosively clad with a stainless steel tube of 3.5mm wall thickness is equal to the strength of titanium (known as a equal-strength bonding). Metallographic observation of the bonding interface indicats that the metal flow at the interface is proper, and intermetallic compound formation does not occur. Direct contact between titanium and stainless steel results in a perfect jont. The proportion of tensile-shear strength to tensile strength of the titanium is 0.6～0.7. The high strength originates from interaction between the two kinds of atoms existing at the interface, i. e. a direct metallurgical bond unperturbed but metallurgical defects. Explosive cladding process leads to a wave-patterned interface, one of the morphological characteristics of equal-strength bonding.

关 键 词：爆炸复合 钛-不锈钢 复合材料 结合强度 

分 类 号：TG392[金属学及工艺—金属压力加工]