macrocrystalline

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。

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。

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。

Effect of Welding Parameters on Low-temperature Toughness in CGHAZ for X80 Pipeline Steel;

焊接工艺参数对X80管线钢焊接粗晶区低温韧性的影响

Thermal cycle of in-service welding and the microstructure & property of CGHAZ of X70 pipeline steel;

X70钢在役焊接热循环及粗晶区组织性能研究

EFFECT OF COOLING TIME ON CGHAZ TOUGHNESS AND MICROSTRUCTURE OF Ti MICROALLOYED STEEL;

冷却时间对Ti微合金钢焊接粗晶区组织及韧性的影响

Analyse of coarse grain defect in aluminium alloy die forgings;

铝合金模锻件粗晶缺陷浅析