…By selecting the composition, processing conditions, and heat treatment conditions appropriately, martensitic transformation can occur during deformation of the material, which can increase the plasticity up to fracture by relieving stress in areas of stress concentration. This phenomenon is called transformation induced plasticity (abbreviated as TRIP) and is used to strengthen ultra-high strength steels and low-temperature steels. In so-called austenitic steels, such as 18-8 stainless steel and high manganese nonmagnetic steel, in addition to α-martensite with a body-centered cubic (or body-centered tetragonal) lattice, ε-martensite with a close-packed hexagonal lattice occurs. … *Some of the terminology that refers to "transformation induced plasticity" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…組成,加工条件,熱処理条件をうまく選ぶと,材料の変形中にマルテンサイト変態が適当に生じて,応力集中部の応力を緩和するなどして破断までの塑性を増加させることができる。この現象は変態誘起塑性transformation induced plasticity(略称TRIP)と呼ばれ,超強力鋼や低温用鋼の強靱化に利用されている。18‐8ステンレス鋼や高マンガン非磁性鋼など,いわゆるオーステナイト鋼では,体心立方(あるいは体心正方)格子のαマルテンサイトのほかに最密六方格子のεマルテンサイトが生じる。… ※「transformation induced plasticity」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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