1) coarse grain boundaries
粗晶晶界
2) grain-boundary coarsening
晶界粗化
1.
The results showed that the black reticular grain boundary was formed with 25Cr2Mo1V steel under long-term elevated temperature service,and the grain-boundary coarsening and grain-boundary segregation of V and S contributed to the reduction of impact ductility and caused embrittlement,which resulted in the shortening of its service time.
结果表明:25Cr2Mo1V钢在长期高温下服役会形成黑色网状晶界,且晶界粗化及V、S元素在晶界处的偏聚,导致冲击韧性降低,产生脆化现象,造成其服役时间缩短。
3) IRCGHAZ
临界粗晶区
1.
Metallurgical microstructure and fine structure in coarse-grained heat-affected zone(CGHAZ) and intercritically reheated coarse-grained heat-affected zone(IRCGHAZ) of in-service welding of X70 pipeline steel were investigated and compared with routine welding by means of welding thermal simulation experiment.
采用焊接热模拟试验研究了X70管线钢在役焊接粗晶区和临界粗晶区的显微组织及其精细结构,并和常规焊接进行了对比。
4) intercritical reheated coarse-grained heat-affected zon
临界再热粗晶区
1.
This study is concerned with the effect of post welding heat treatment(PWHT)on the microstructure and properties at the intercritical reheated coarse-grained heat-affected zone(IRCGHAZ)of WB36 steel, and investigated whether the PWHT could reduce IRCGHAZ embrittlement.
针对WB36钢(15NiCuMoNb5)临界再热粗晶区(IRCGHAZ)存在的脆化现象,研究了焊后热处理对模拟临界再热粗晶区(IRCGHAZ)组织性能的影响,探讨其改善韧性作用。
5) coarse grain
粗晶
1.
The relation between coarse grain and rupture of casts was found thro ugh analyzing the formation of coarse grains and tests for eliminating coarse gr ains on ZG32Cr06 cast steel.
通过对ZG32Cr0 6铸钢粗晶成因的分析及消除粗晶的工艺性能试验,探讨了粗晶导致铸件断裂的机理。
2.
The cause of surface coarse grain of aluminium profile is analyzed.
表面粗晶与铸棒晶粒度，挤压温度、挤压比、模具设计制作等因素有关，与铸锭Zn含量无关，避开临界变形量是消除粗晶的主要措施。
3.
The coarse grain cemented carbides demonstrates the special properties and applications,with a serials merits,such as few structural defects,high micro-hardness,low micro-strain.
粗晶硬质合金具有特殊性能和用途,尤其是高温粗晶硬质合金具有结构缺陷少、显微硬度高、微观应变小等一系列优点,因此被广泛应用于矿山工具、冲压模具、石油钻采、硬面材料等领域。
补充资料：晶晶
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