Consequently martensite will form in the welds and heat affected zone ( haz ) requiring proper and precise pwht procedures 因此在焊接部位和热影响区域（ haz ）形成马氏体就需要正确的精密的pwht工序。
In this paper . monte carlo ( mc ) technique was used to simulate the grain growth in heat - affected zone of an ultra - fine grain steel 本文采用montecarlo ( mc )模拟技术对超细晶粒钢铁材料焊接haz的奥氏体晶粒长大进行了研究。
The microfissuring behaviors in the heat - affected zone ( haz ) of electron beam ( eb ) welded nickel - based superalloy gh 4133 have been studied by using analytical scanning electron microscopy ( sem ) 摘要利用金相分析和扫描电镜对镍基高温合金电子束焊接热影响区微裂纹行为进行了分析。
The results of finite element analysis including the latent heat show lower maximum temperature , smaller size of melting pool , and narrower heat affected zone compared with the analysis neglecting the latent heat 考虑潜热的有限元模型分析结果和忽略潜热的计算结果比较，前者显示出较低的最高温度、较小的熔池范围和较窄的热影响域。
It is presented that the gas - gushing volume is well consistent to where it is affected by fault through comparing the gas - gushing volume of affected zones to that of normal zones 研究表明，断层作用区与煤层瓦斯高涌出量具一致性；断层落差与最大瓦斯涌出区至断层点的距离具极好的相关性；瓦斯异常涌出范围与断层落差之间也呈现良好的线性关系。
Test results show that the formation of protective nut by laser welding have narrow heat affect zone and minimum organization grow up inclination , gentle hardness gradient , and the protective cover is nearly not out of shape 研究结果表明，防护螺母激光焊接成形具有最窄的热影响区和最小的组织长大倾向，硬度梯度平缓，且防护罩几乎没有变形。
At the same time , the depth of die heat affected zone ( haz ) transfer law and influential mechanism of temperature wave have been analyzed , which lay a foundation for further research of temperature field and thermal stress filed of die 同时分析了温度波在模具中的传递规律，热影响区范围与影响机理，为进一步开展锻模温度场与热应力场的研究提供了基础。
In many applications , water jet machining has some advantages over the laser , plasma and edm etc . , such as less expensive , environmentally friendly and has no heat affected zone ( working temperature less than 100 c ) 水射流具有介质成本低、清洁、环境友好，而且对被加工材料无热损伤（被切割材料温度小于100 ）等优点，在许多材料的切割加工、表面处理中，水射流具有其独特的优越性。
The results show that , when the hardfacing process is not appropriate , the thick martensite structure with high carbon content will form in the overheat region of heat affected zone , and the high residual stress occurred , which are the primary causes resulting in crack 结果表明，堆焊工艺制定不当，热影响区的过热区形成高碳粗大马氏体组织及保留了较大的焊接应力，是导致堆焊层开裂的主要原因。
