However , in the area with strong magma mingling , there are widespread abnormal fabrics , distinguished differences in the idiomophic - textures and the peritectic reaction , poililitic texture , metasomatism among the minerals , metasomatic border , embayment , rimmed structure , abnormal plagioclase zoning , relict fabric as well as the acicular apatite are very common 岩石的异常结构构造十分发育,矿物之间自形程度差异显著,常见包晶反应、包含结构、交代边、熔蚀边、交代蚕食的港湾状结构构造及交代缝合线、矿物镶边、斜长石异常环带和矿物残留等,多见指示岩浆混合的标志性矿物针状磷灰石。
Environmental mineral fibre mainly points crude minerals like sepiolite and palygorskite species layer - chained magnesian silicate , which have excellent physical - chemical properties and are rare environmental mineral materials in the world nowadays because of the rigor of their form conditions . the single crystals of palygorskite are mostly acicular and fibrous , 30 - 80nm of crystal diameter , and are typical crude nano - rank materials 环境矿物纤维主要指以海泡石、坡缕石类层链状镁质硅酸盐为主的天然矿物,具有优良的物化性能,由于其形成条件苛刻,为世界性稀缺的环境矿物材料,其单晶多为针状、纤维状,晶体直径为30 - 80nm ,属典型的天然纳米级材料。
The network carbide and acicular martensites that existed in the microstructure of the root grooves of the spline due to improper carburating and quenching process of the shafts , led to the initiation and propagation of the intergranular microcracks and were the main reason that caused the early fracture of the shafts 由于渗碳淬火工艺不当,在二轴花键槽根部的组织中产生了网状破化物和粗大的针状马氏体,在外力作用下形成沿晶显微裂纹并扩展,是导致二轴疲劳断裂的主要原因。