疲劳试样多数断于接头的热影响区，造成这一结果的主要原因是热影响区的组织不均匀性和氢含量相对较高。
The fracture occurres at heat affected zone (HAZ) of most fatigue specimens. This is due to the structure inhomogeneity and the higher hydrogen content of materials at HAZ.
结果表明：回火索氏体是最佳的组织形态；微观硬度的不均匀性显著影响钢的表面加工质量。
The results indicated that the tempered sorbite was the optimum microstructure, the inhomogeneous distribution of micro hardness affected markedly the finish quality of the steel surface.
本文采用概率断裂力学方法和可靠性分析方法，针对压力容器焊接接头的组织不均匀特点，研究了焊缝区疲劳失效概率模型。
The paper studies the fatigue failure probabilistic model of the weld zone in welded joint using probabilistic fracture mechanics and reliabilitistic analysis methods.
冷变形提高了钢中位错密度，也加剧了位错分布的不均匀性，后者是预应变加速组织演变的直接原因。
Cold deformation results in increasing of dislocation density and inhomogeneous dislocation distribution, the latter is the direct reason for pre-strain to promote microstructural evolution.
在相变点附近变形时容易导致合金组织和性能出现不均匀性。
When deforming near beta transition point, it may lead to the uncertainty of microstructure and properties of TC18 alloy.
由于血液灌注差异、组织结合力、局部pH值和细胞膜通透性差异等的不同，药物分布一般也是不均匀的。
Distribution is generally uneven because of differences in blood perfusion, tissue binding, regional pH, and permeability of cell membranes.
结果表明，在固溶与时效处理中间加入预时效处理可有效消除单晶合金组织与成分的不均匀性。
The effects of pre-aging treatment on segregation behavire of Ni-based single crystal superalloy CMSX-3 were also studied.
结果表明，在固溶与时效处理中间加入预时效处理可有效消除单晶合金组织与成分的不均匀性。
The effects of pre-aging treatment on segregation behavire of Ni-based single crystal superalloy CMSX-3 were also studied.
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