The star cracks in macrostructure appear in some hypo-peritectic continuous cast alloy blooms and these cracks cannot be stuck completely by hot rolling reduction ratio,macroetching testing and SEM.
The dynamic equation of the transient response in a cracked rotor system was modelled, the numerical simulation solutions of the uncracked rotor and the cracked rotor were obtained.
Air hole, burnthrough, cooapse and welding crackle occurred in the fixed overhead weld for aluminium and aluminium alloy tubes, above all the small-size thin wall tube.
It holds that main causes promoting crack on martensite stainless steel are gross martensite and crystal boundary carburet and secondary phase distributed along crystal boundary.
The crack initiates at stress concentration point in the root of weld, where has much more martenite, carbide and inclusion, and the serious hydrogen segregation.
The color of the products is argent grey metallic shine, smooth, unknit. They mustn't be oxydic badly, lacking of sintering, over heating, delamination and cracking.
Model testing study is made on prefabricated spiral V-notch blasting, and hydromatic method is used to simulate the quasi-static process in blasting of explosive.
A reliable, feasible finite element analysis model for multi-pin-hole connected structure with multi-cracks was established with contact between pin and the conjunctional structure.
But in the couse of lathing and dawdling,the trouble of deformation,empyrosis and crack lf parts often appears which affects seriously the processing quality.
Piezoresistivity of ECAC may involve proximity effect, microcrack and the staggered arrangements of conductive pass-ways due to shear strength of aggregates.
New fissures have formed in the ground, and though volcanic activity in these cracks slow down yesterday, scientists thought it was just a pause and that the eruption would continue.
Today, cracks in the aging paint — known as craquelure — reveal fragments of dusty yellows, vibrant reds, and faded emeralds, hinting at all the stages Malevich went through before arriving at the painting's final form.
They're super worn, these Kellys, and the leather is, like, super crunchy, and I love when, like, the leather cracks, and there's scratches, and there's scuffs, and the corners are all messed up.
The concrete use to make many American bridges is cheap and strong, but overtime, it can crack and crumble and it needs to be patched to keep the bridge standing.
Confinement had leached his skin of its autumn tan, and as he sat hunched over the yellowed, crackling sheets, his reddish-blond hair tumbling untidily over his forehead, he looked slightly lunatic.
You could apply the same principle to a crack that is not visible to the eye, for example, take high speed train troubles, although this has to do with metal.
These included cracked runways, damaged buildings and roads, and a collapsed rock barrier that had been piled up to hold back floodwater at Thule in Greenland.
铝合金管,特别是小口径薄壁管固定口仰焊部位易出现气孔、烧穿、塌陷
,
焊接工艺方面入手,提出一套消除气孔
、晶界碳化物以
只是
暂停，火山爆发仍会继续。
被称为“
的最终形式之前经历的所有阶段。
