经实验发现细晶粒碳钢焊接接头拉伸试验断口在远离热影响区的母材上。
It is found that the weld of fine grain steel break apart from heat effect zone in the tensile test.
无论是焊接热模拟试件还是焊接接头硬度测试均表明HAZ不存在软化问题，接头拉伸试验断在远离热影响区的母材上。
Hardness measurement on welding thermal simulated specimens and cross weld specimens showed that no softening occurred in the HAZ. All the cross weld tensile specimens ruptured in the base metal.
使用SEM、EDX分析了界面微观结构，通过拉伸试验对接头力学性能进行了评定。
The interface microstructure is analyzed by SEM and EDX. The mechanical properties of the joint is evaluated through tensile tests.
采用真空热循环试验装置，模拟近地轨道空间环境，研究了LF 6铝合金焊接接头拉伸性能和微观组织，分析讨论了真空热循环对焊接接头的影响规律。
The tensile properties and microstructure of LF6 aluminum alloy weld joint under simulating near earth space environment are studied by means of vacuum thermal cycling system.
焊接接头的拉伸试验断裂部位在焊缝。焊接HAZ熔合线附近的硬度值最高，远离熔合线硬度降低，并逐渐接近母材金属的硬度。
The tensile test fracture area locates on weld seam, and the hardness near HAZ fusion line is the highest, away from the fusion line, the hardness declines and reach the parent metal hardness.
从焊接性和焊接接头使用性能两个方面入手，结合焊接接头的硬度、拉伸和冲击韧度的测试，对X80管线钢的焊接性能进行了试验分析。
The mechanical properties and weldabilities of X80 pipeline steel were investigated by testing hardness, tensile strength and impact toughness in this paper.
其次，用试验找出符合力学模型的胶接固化工艺条件，并用试验验证用被粘材料的屈服强度估算接头能承受的最大拉伸力的合理性。
Thirdly, the optimum curing process parameters suitable with the mechanics model are found out and rationality of the estimated value is also validated by test.
通过单轴拉伸与平面拉伸试验，得到了柔性接头弹性件橡胶材料“三阶五项式冶超弹本构模型参数，通过有限元计算证明了该模型的优越性。
Planar and uniaxial tests were implemented to achieve 3nd order 5th item strain model constant of theelastomer and it is proved this model was superior to others.
最后分别对3种方法进行了测试试验。结果表明，3种试验方法均能有效测试爆炸复合接头的剪切强度，其中对称试件双切口拉伸法最适合实际应用。
Results shows that all these three methods can be used to measure the shear strength of explosion cladding interface, and the most practical one is the double-notch method using symmetry specimen.
最后分别对3种方法进行了测试试验。结果表明，3种试验方法均能有效测试爆炸复合接头的剪切强度，其中对称试件双切口拉伸法最适合实际应用。
Results shows that all these three methods can be used to measure the shear strength of explosion cladding interface, and the most practical one is the double-notch method using symmetry specimen.
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