韌脆轉化 的英文怎麼說
中文拼音 [rèncuìzhuǎnhuà]
韌脆轉化
英文
tough brittle transition-
The results revealed that the essential condition occurring brittle - tough transition in such ternary system was l ? lc ( ? 0. 095 ? m ), and the effect of above factors on the impact behavior followed percolation mechanism which indicated that it was some reasonable using lc as single parameter criterion of brittle - tough transition of pp / eoc / caco3 composites. the micro - deformation model at different dispersing morphology was then proposed
首次將聚合物復合材料脆韌轉變機理的定量化研究從二元體系拓寬到三元體系，對ppffioc aco3體系的配方進行設計，制備得到高剛性高韌性低成本的聚丙烯復合材料， eoc和cvco3的體積份數之和為25v （其中彈性體相為10v 。After pretorsion the successor tensile yield limit and strength limit both improved very highly, but the trend of the increase of the strength limit was suspended till the pretorsional capacity reached 17, when the pretorsional capacity was greater than17 ( prestrain value was 81. 19 % of total strain ), the successor strength limit rapid failed and approached the yield limit. this illustrate the a3 steel specimen translate from plasticity into friability after pretorsion strengthen. when the specimen was operated by tension - torsion action, the yield limit had very large improved, but the strength limit changed very little. furthermore, the trend of the increase of the strength limit was suspended till the pretension capacity reached 0. 25 ( prestrain value was 66. 93 % of total strain )
A3鋼試件在預扭轉后，后繼拉伸屈服極限和強度極限均有很大提高，但強度極限的增大趨勢到預扭轉量為17為止，預扭轉量大於17 （預應變值為總應變的81 . 19 ）后強度極限迅速下降，與其屈服極限接近，這說明a3鋼試件經預扭轉強化后逐漸由塑性轉化為脆性。該預應變值為a3鋼試件的韌脆轉變點。 a3鋼試件在拉伸-扭轉作用下，屈服極限有很大提高，但強度極限沒有多大改變，而且，屈服極限的增大趨勢到預拉伸量為0 . 25應變（預應變量為總應變量的66 . 93 ）后就不再增加。Tectonic analysis controlling gold mine mineralization in taihua group suggest that ductile fractures chang into brittle - ductile ones going with upliftling of xiaoqinling area after in - china orogeny. brittle fractures form on the basis of brittle - ductile ones that develop and inherit the characteristic of the latter stress field. folds and faults analysis in taihua group and its bilateral reveal that yanshanian tectonic evolution of xiaoqinling area undergo at least three phases of deformation
太華群內金礦成礦構造分析表明，印支期碰撞造山後小秦嶺擠壓抬升，控礦韌性剪切帶向脆韌性轉化（ 207 148ma ） ，在脆韌性剪切帶基礎上疊加改造形成容礦斷裂，脆性斷裂的發育繼承了韌脆性剪切帶發育時的應力場特徵。
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