脆性金属

因而该技术也可用于脆性金属板材的连接。

Therefore , DPR process can also be applied to join brittle metal sheets .

试验中引入偏束焊技术以解决异种金属连接时两侧母材热输入不均以及焊缝表面成形的问题，并研究了通过在接头处添加Cu以解决焊缝区大量Fe-Al脆性金属间化合物生成的问题。

Deflection electron beam welding was brought out to improve the heat input of both side dissimilar metals and the appearance of weld surface . Cu was added into the joint to prevent the intermetallic compound Fe-Al from generating .

脆性金属材料的断裂韧性测定方法研究

On The Measurement of Fracture Toughness of Brittle Metallic Materials

采用过渡层法进行钛合金与不锈钢的焊接时，基本能够避免焊接材料之间脆性金属间化合物的大量生成，从而有效提高焊接接头的连接强度。

The intermetallics could be avoided effectively by using the method of transition layers between titanium alloy and stainless steel , and the tensile strength of welded joints is enhanced .

作为脆性金属材料的中硅球铁（～5%Si），在低拉伸速率时呈现出一定塑性，表明这类材料在慢拉伸条件下，其塑性尚有一定潜力。

The nodular cast iron with a medium Si content ( 5 % Si ), known as a brittle metallic material , exhibits certain extent of ductility at lower tension rate , shows that this material has some potential in ductility at slow tension .

结果表明：在界面区发生了互扩散，形成了Fe、Cu固溶体，无脆性的金属间化合物产生，这使得该复合材料具有较好的微观结合力。

The results show that the mutual diffusion occurs and solid solution is formed without brittle intermetallic compound ( IMC ) at the interface , which makes the composite material to possess better bonding strength .

钛合金和铝合金的焊接过程中，在Ti合金/Al合金界面处极易生成各种脆性的金属间化合物，制约着接头的结合性能。

During the welding process of titanium alloy and aluminum alloy , it is easy to form many kinds of brittle intermetallic compounds at the interface of Ti / Al dissimilar alloys . Those compounds weak the bonding strength of Ti / Al joints .

脆性泡沫金属有比较长而平缓的屈服平台区。

The collapse region of brittle metal foams is wide and even .

确定了MoSi2的机械合金化过程属延性金属与脆性非金属体系。

So the Mechanical Alloying process of MoSi 2 is included to the system of plastic metal and brittle nonmetal .

但镁、铝之间极易形成大量脆性的金属间化合物相，恶化接头性能，采用传统的焊接方法难以获得良好的接头性能。

But the brittle intermetallic phases can be easily formed between magnesium and aluminum elements , which will deteriorate the joint performance .

⑨选用的中间层材料元素应尽可能与基材的元素互相固溶或生成混合物，尽量避免产生脆性的金属间化合物。

⑨ Elements of chosen interlayer materials should form solid solution or eutectic with that of matrix materials as possible in order to avoid the formation of brittle inter-metallic compounds .

结果表明：热处理可以使扩散层增厚，提高涂层与基体之间的结合强度。但是，如果热处理温度太高会生成脆性的金属间化合物，使涂层与基体之间的结合强度下降。

The results show that heat treatment could increase the depth of diffusion layer and rise the bounding strength of coating to substrate , but if the temperature of heat treatment was too high , the bounding strength would decrease because a brittle metallic compound formed .

本实用新型属于金属材料的切削刀具领域，特别适合于脆性稀贵金属材料的小深孔套料加工。

The utility model belongs to the field of metal material cutting tools , especially fitting for boring processing of a small deep hole of brittle rare and precious metal material .