摘要
对63Sn-37Pb和Sn-0.7Cu两种钎料进行了单轴拉伸试验、纯扭试验和纯扭疲劳试验。结果表明,钎料拉伸和纯扭时的应力应变关系有很强的应变速率相关性。弹性模量和剪切模量受应变速率的影响很小。钎料的屈服强度、剪切屈服强度、抗拉强度和抗剪强度也受应变速率的影响。钎料是剪切型破坏材料,并且发生循环软化。
The uniaxis tension and pure torsional tests in addition with torsional fatigue tests were conducted on 63Sn-37Pb and Sn-0.7Cu. The results show that the stress-strain relationship, yield stress, shear yield stress, tensile strength, shear strength of the solders have strong strain rate-dependence. But the elastic modulus and shear modulus do not have apparent stra, in rate dependent effect. The two solders belong to shear-type fracture materials, and the cyclic softening effect occurs under cyclic loading conditions.
出处
《理化检验（物理分册）》
CAS
2007年第6期271-274,289,共5页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
基金
国家自然科学基金项目"微电子封装焊锡钎料多轴蠕变疲劳研究"(10272080)
