Francisca Josefa de Castillo is more celebrated for her woks in prose than for her poetry; among other works she wrote Su Vida, Afectos espirituales and other short texts in prose. Given the place the Virgin occupies in colonial religiosity, it is no surprise that among her poems there is one dedicated to the celestial mother: "Elogios y súplicas a María Santísima". Though, on a first reading, it seems just a charming laudatory poem to the Virgin, a historical examination of the devotion to Mary allows us to perceive the most important themes debated in this tradition. Castillo unfolds her knowledge and argues about the veneration of the Virigin. Though allusion to Mary are found in all her writings, I will only consider two of these texts for this essay: the poem"Elogios y súplicas a María Santísima" and Su Vida. Our aim is to revise the theological approach of Castillo on the doctrine of Mary and to analyze how her narrative epitomizes the contents of the poem.

Francisca Josefa de Castillo es más celebrada por su trabajo en prosa que por su poesía. Ella escribió, entre otras obras, Su Vida, los Afectos espirituales y otras composiciones cortas en prosa. Dado el lugar que ocupa la Virgen en la religiosidad colonial, no es sorprendente que entre sus poemas haya uno dedicado a su madre celestial: "Elogios y súplicas a María Santísima". Aunque una primera lectura pareciera ofrecer solamente un hermoso poema laudatorio a la Virgen, un examen histórico de la devoción mariana permite constatar que en el texto se exhiben los temas más importantes debatidos a través de la historia de dicha tradición. Castillo despliega su conocimiento y avanza su argumento en lo que hace a la veneración de la Virgen. Aunque las alusiones marianas se encuentran a lo largo de todos sus escritos, consideraré solo dos de sus obras para el propósito de este ensayo: el poema "Elogios y súplicas a María Santísima" y Su Vida. El objetivo es revisar el enfoque teológico de Castillo sobre la doctrina mariana y analizar cómo su narrativa epitomiza el contenido del poema.

A evolução da textura, nos estados "como recebido", laminado a frio, recozido e após a estampagem, e a estampabilidade de aços inoxidáveis ferríticos AISI 430, estabilizados ao nióbio, foram estudadas. Duas corridas de chapas com espessuras de 3,0 e 0,7 mm foram utilizadas. A de maior espessura foi relaminada a frio e recozida. A de menor espessura, de composição química semelhante à primeira, foi laminada a frio, na usina siderúrgica, e, posteriormente, submetida a estampagem. A textura foi avaliada usando DRX em todas as condições. O aço AISI 430, na condição "como recebido", apresentou forte textura {100}<110>, {100}<120> e a fibra g. Após a deformação, a intensidade da fibra g aumentou e apareceu a fibra a. O recozimento causou o desaparecimento da fibra a e o fortalecimento da fibra g, que é uma textura adequada para a estampagem. Embora o aço AISI 430, de espessura 0,7 mm, tivesse apresentado uma forte textura de fibra g, no estado inicial, as propriedades de estampagem não foram boas e o material trincou durante a conformação.

Texture evolution in AISI 430 Nb stabilized ferritic stainless steels in the "as-received", hot-and cold-rolled, annealed and stamped conditions have been studied, along with their formability. Two ferritic stainless steels (Nb stabilized) having a thickness of 3.0 and 0.7mm, were employed. The thicker one was cold rolled and annealed. The thinner one, with similar composition, was cold rolled at the steel plant and subsequently submitted to deep drawing. Texture has been evaluated using DRX for all conditions. The AISI 430 stainless steel, in the "as-received" condition presented a strong {100} texture in the <110> and <120> directions and the gamma fibre. After cold rolling the material presented stronger gamma and weaker alpha fibres. Annealing of the cold rolled steel conduced to the vanishing of the alpha fibre and strengthening of the gamma fibre, adequate for deep drawing operations. Although the AISI 430 stainless steel of 0.7mm presented a strong gamma fibre, other deep drawing properties were inadequate and the material cracked on stamping.

Wrought austenitic stainless steels are widely used in high temperature applications. This short review discusses initially the processing of this class of steels, with emphasis on solidification and hot working behavior. Following, a brief summary is made on the precipitation behavior and the numerous phases that may appear in their microstructures. Creep and oxidation resistance are, then, briefly discussed, and finalizing their performance is compared with other high temperature metallic materials.