结果表明，细小弥散的第二相粒子能有效地阻碍焊接热影响区粗晶区的原奥氏体晶粒长大，改善该区域的韧性。
The results show that the dispersed second phase particles can effectively retard the growth of austenite grain in the CGHAZ, and improve the toughness.
高温高压法加速腐蚀。结果表明，C4镍基合金热影响区奥氏体晶粒长大，X60钢过热区为大块铁素体组织。
The results show that the coarse austenite grain in heat affect zone (HAZ) of Ni-base alloy is observed, mass ferrite appears in HAZ of X60 steel.
研究了一种适用于管道钢管和管件制造的X70级管线钢在不同加热温度下的奥氏体晶粒长大规律和组织-性能间的关系。
The article discusses and finds the Auster grain growing rules and relations of structure and properties of X70 steel in weld pipe and pipe accessories under the different heating temperature.
分析了传统的焊接热影响区（HAZ）晶粒长大模型，在此基础上，介绍了适用于高强度管线钢的奥氏体晶粒长大的耦合模型。
In this paper, the traditional HAZ grain growth model is analyzed. Based on the model, analytical model of austenite grain growth fit to high strength pipe-steel is introduced.
结果表明，在变形后的保温过程中，形变诱导的铁素体先逆相变为奥氏体，同时伴随着诱导铁素体晶粒的长大；
The results showed that the deformation induced ferrite inverse transformed to austenite and grains growted within holding time after deformation.
试样经奥氏体区高温处理后，铈的添加细化含锡钢的奥氏体晶粒，并且使晶粒长大趋势变慢。
During the austenitizing treatment process of heated, adding cerium into steel contained tin could make grain size small, and moreover, it could make the trend of grain size growing up slow.
试样经奥氏体区高温处理后，铈的添加细化含锡钢的奥氏体晶粒，并且使晶粒长大趋势变慢。
During the austenitizing treatment process of heated, adding cerium into steel contained tin could make grain size small, and moreover, it could make the trend of grain size growing up slow.
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