Therefore, a second time PWHT was carried out and it gave a satisfactory result.
为此，进行第二次热处理，并取得较好的效果。
The embrittlement of the welds increases with the increase of quenching temperature of PWHT.
淬火温度越高，焊缝脆化越严重；
The pipe with original welding residual stresses is analyzed under different conditions of PWHT.
对存在原始焊接残余应力的管接头在不同的热处理条件下进行分析。
The three dimensional welding residual stress and temperature fields in local PWHT are constructed.
构造了三维管接头焊接应力和局部热处理温度场。
When post weld heat treatment is required, the PWHT may be performed by using an approved subcontractor.
如果需要进行后焊热处理，则应由经核准的分包商实施。
A series of different PWHT conditions are studied to find the critical heated width by using this method.
采用此方法可评价各种因素对局部焊后热处理的影响，并寻求最佳加热条件。
However up to now the assessing criteria in local PWHT are still very different from one code to another.
然而至今各国关于局部焊后热处理的评定标准仍存在很大的差异。
The creep-fatigue properties of 308L ste el weld after post-weld heat treatments (PWHT) were investigated.
研究308L焊缝经过焊后热处理其蠕变-疲劳的性质。
A model based on inherent strain theory has been proposed to explain the mechanism at different stage of local PWHT.
提出了基于固有应变理论的模型，对焊后局部热处理各个阶段的特征进行了阐述。
This method clearly shows the whole history of stress relief during PWHT and a critical heated width can be obtained.
该方法可清楚地显示整个热处理过程中的应力变化并可找到临界的加热宽度。
The characteristics of stress distribution in local PWHT for tubular joints have been studied using viscoelastic plastic FEM.
采用粘弹塑性有限元方法对管接头焊后不同局部热处理条件下应力分布特征进行了研究。
The influence of PWHT conditions on hydrogen-induced disbonding were studied through a series of electrolytic hydrogen charging tests.
通过一系列电解充氢试验比较了不同焊后热处理条件对不锈钢堆焊层氢致剥离的影响。
This procedure covers the method for casting material's heat treatment, and Post weld heat treatment (PWHT) to weld repair area of castings.
本程序包括铸件材料的热处理方法，铸件焊补区域的焊后热处理方法。
Upon satisfactorily completion of the required visual inspection and PWHT, the coupons shall be sent for machining for preparation of test specimens.
目视检验合格，完成后焊热处理之后，附体试片应转送加工，作为试件样品使用。
The results show that after post-weld heat treatment(PWHT), the welds of X80 steel seriously embrittle, and the fracture morphology of impact specimens is cleavage.
结果表明，经过焊后热处理后焊缝出现严重的低温脆化，其冲击试样的断口为解理状形貌；
The results show that after post-weld heat treatment(PWHT), the welds of X80 steel seriously embrittle, and the fracture morphology of impact specimens is cleavage.
结果表明，经过焊后热处理后焊缝出现严重的低温脆化，其冲击试样的断口为解理状形貌；
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