abnormal grain growth meaning in English
反差晶粒生长
反常晶粒生长
晶粒反常长大
异常晶粒长大
异常晶粒生长
Examples
- Abnormal grain growth and its countermeasure in sintering of fine grained polycrystalline diamond compacts
细粒度金刚石烧结体中异常粒成长及其对策 - The temperature field of the huge stream turbine rotor during free forging is numerically simulated with different process parameters . the purpose is to find out a set of optimum process parameters so that the temperature of the rotor center does not exceed the limit temperature of abnormal grain growth which is about 1100c
对大型汽轮机转子锻造过程中的成形火次进行了温度场的数值模拟和优化，得到了控制转子锻件心部温度不超过1100的工艺参数，为实际生产解决混晶问题提供了参考数据。 - The microwave magnetic sintering can not only lower the sintering temperature and shorten the sintering time , but also decrease the micro - grain size of magnets and make intergranular phase and grain boundary of main phase distributed well . the abnormal grain growth was found in conventional sintered ndfeb magnets , which may be due to the greater particle size and uneven distribution of powder , and higher sintering temperature and longer sintering time . of course , the abnormal grain growth would deteriorate the magnetic properties
微波磁场烧结的不但降低烧结温度，缩短烧结时间，而且使磁体整体加热，受热更均匀，因而磁体晶粒更细小，并且主相晶粒边界趋于规则化，晶间相的分布更均匀；在常规烧结的磁体中则出现了晶粒异常长大现象，造成这一现象的原因，一方面可能是烧结温度过高或烧结时间过长，另一方面可能是磨制的粉体均匀性较差，存在的大颗粒被许多细小颗粒包围，在烧结过程中，大颗粒不断吞并小颗粒，逐渐长大，而异常长大的晶粒自然会导致磁体性能的恶化。