对地表陨石坑岩石和陨石的冲击变质效应的研究，是以往发现天然高压矿物的主要途径。
The study of shock-metamorphic effects on the rocks of terrestrial impact craters and on meteorites has been an approach in searching natural high-pressure minerals.
结果表明：稀土变质及热处理均能改善碳化物的形貌，提高其冲击韧度，且两者的综合作用效果更明显。
The results show that rare earth modification and heat treatment all can improve eutectic carbide morphology and increase the impact toughness, and both comprehensive result is more noticeable.
变质后高碳高速钢辊环在硬度不变的情况下，冲击韧性提高了73.6 %。
Compared with the high carbon high speed steel without modification treatment, the impact toughness is increased by 73.6 %, with same hardness.
复合变质中锰奥氏体钢的冲击韧度、裂纹形成功和裂纹扩展功分别比原来提高了263%、288%和232%。
The impact toughness, crack forming energy and crack extension energy of complex modified medium manganese austenitic steel. Are increased by 263%? 288% and 232% respectively.
利用冲击疲劳试验，研究了稀土变质及热处理对低铬半钢抗冲击疲劳性能的影响。
The effect of re modification and heat treatment on impact fatigue property of low chromium cast semi steel was studied by means of impact fatigue test.
结果表明，稀土—硅复合变质处理显著改善了碳化物的分布形态，并使铸铁的冲击韧性大幅度提高。
The experimental results show that RE-Si compound modification improves the morphology and the distribution of carbide and the impact toughness of vanadium white cast iron was increased remarkably.
此外，变质处理对高硼低碳铁基合金硬度无明显影响，但明显提高抗弯强度和冲击韧度。
Furthermore, the modification has no obvious influence on the hardness of high boron and low carbon ferroalloy, but increases its impact toughness and bending strength obviously.
研究了RE变质剂对铸态h1 3钢凝固组织和冲击韧性的影响。
Influence of re on solidification structure and impact toughness of cast H13 steel has been investigated.
结果表明，变质处理后钨合金白口铸铁的微观组织中碳化物网络断裂，其抗冲击韧性和耐磨损性能显著提高。
The results show that the carbide networks in microstructure tend to break, and fracture toughness and wear-resisting properties of the alloy were improved.
利用冲击疲劳试验，研究了稀土变质及热处理对低铬半钢抗冲击疲劳性能的影响。
Effects of re modification and heat treatment on carbide morphology and mechanical properties of cast semi steel were studied.
利用冲击疲劳试验，研究了稀土变质及热处理对低铬半钢抗冲击疲劳性能的影响。
The effect of re modification on the microstructure and impact toughness of wear resistant white cast iron are investigated.
这几年城市雕塑在遭遇无序、低质竞争大冲击之后，许多知名雕塑家选择退出这块变质了的商业拼搏之地，潜心架上雕塑创作。
Recently, urban sculptures' poor quality made so many famous sculptors retreated from its commercial market, turning to the on-shelf sculpture.
利用冲击疲劳试验 ，研究了稀土变质及热处理对低铬半钢抗冲击疲劳性能的影响。
The effect of SST103 quenching medium on hardness distribution and cracking character of low chromium semi-steel were studied.
利用冲击疲劳试验 ，研究了稀土变质及热处理对低铬半钢抗冲击疲劳性能的影响。
The effect of SST103 quenching medium on hardness distribution and cracking character of low chromium semi-steel were studied.
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